diff --git a/administrator/components/com_cache/Controller/DisplayController.php b/administrator/components/com_cache/Controller/DisplayController.php
index 65d3152bb0c5d..07dd644e7d977 100644
--- a/administrator/components/com_cache/Controller/DisplayController.php
+++ b/administrator/components/com_cache/Controller/DisplayController.php
@@ -62,9 +62,6 @@ public function display($cachable = false, $urlparams = false)
 			// Push document object into the view.
 			$view->document = $document;
 
-			// Load the submenu.
-			CacheHelper::addSubmenu($this->input->get('view', 'cache'));
-
 			$view->display();
 		}
 	}
diff --git a/administrator/components/com_cache/Helper/CacheHelper.php b/administrator/components/com_cache/Helper/CacheHelper.php
index bad1253cc1dec..7966d034b3388 100644
--- a/administrator/components/com_cache/Helper/CacheHelper.php
+++ b/administrator/components/com_cache/Helper/CacheHelper.php
@@ -20,32 +20,5 @@
  */
 class CacheHelper
 {
-	/**
-	 * Configure the Linkbar.
-	 *
-	 * @param   string  $vName  The name of the active view.
-	 *
-	 * @return  void
-	 *
-	 * @since   1.6
-	 */
-	public static function addSubmenu($vName)
-	{
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_CHECKIN'),
-			'index.php?option=com_checkin',
-			$vName == 'com_checkin'
-		);
 
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_CLEAR_CACHE'),
-			'index.php?option=com_cache',
-			$vName == 'cache'
-		);
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_PURGE_EXPIRED_CACHE'),
-			'index.php?option=com_cache&view=purge',
-			$vName == 'purge'
-		);
-	}
 }
diff --git a/administrator/components/com_cache/View/Cache/HtmlView.php b/administrator/components/com_cache/View/Cache/HtmlView.php
index 651a27ed28455..38329dab5696c 100644
--- a/administrator/components/com_cache/View/Cache/HtmlView.php
+++ b/administrator/components/com_cache/View/Cache/HtmlView.php
@@ -52,7 +52,6 @@ public function display($tpl = null)
 		}
 
 		$this->addToolbar();
-		$this->sidebar = \JHtmlSidebar::render();
 
 		parent::display($tpl);
 	}
diff --git a/administrator/components/com_cache/View/Purge/HtmlView.php b/administrator/components/com_cache/View/Purge/HtmlView.php
index f160be5d72f8e..f6b640ce3e695 100644
--- a/administrator/components/com_cache/View/Purge/HtmlView.php
+++ b/administrator/components/com_cache/View/Purge/HtmlView.php
@@ -33,7 +33,6 @@ class HtmlView extends BaseHtmlView
 	public function display($tpl = null)
 	{
 		$this->addToolbar();
-		$this->sidebar = \JHtmlSidebar::render();
 
 		parent::display($tpl);
 	}
diff --git a/administrator/components/com_cache/tmpl/cache/default.php b/administrator/components/com_cache/tmpl/cache/default.php
index 57ebb1fbede60..169576262d66f 100644
--- a/administrator/components/com_cache/tmpl/cache/default.php
+++ b/administrator/components/com_cache/tmpl/cache/default.php
@@ -21,10 +21,7 @@
 ?>
 <form action="<?php echo Route::_('index.php?option=com_cache'); ?>" method="post" name="adminForm" id="adminForm">
 	<div class="row">
-		<div id="j-sidebar-container" class="col-md-2">
-			<?php echo $this->sidebar; ?>
-		</div>
-		<div class="col-md-10">
+		<div class="col-md-12">
 			<div id="j-main-container" class="j-main-container">
 				<?php echo LayoutHelper::render('joomla.searchtools.default', array('view' => $this)); ?>
 				<?php if (count($this->data) > 0) : ?>
diff --git a/administrator/components/com_cache/tmpl/purge/default.php b/administrator/components/com_cache/tmpl/purge/default.php
index 00e4f9d05b801..7b0e26d3e459d 100644
--- a/administrator/components/com_cache/tmpl/purge/default.php
+++ b/administrator/components/com_cache/tmpl/purge/default.php
@@ -17,10 +17,7 @@
 
 <form action="<?php echo Route::_('index.php?option=com_cache&view=purge'); ?>" method="post" name="adminForm" id="adminForm">
 	<div class="row">
-		<div id="j-sidebar-container" class="col-md-2">
-			<?php echo $this->sidebar; ?>
-		</div>
-		<div class="col-md-10">
+		<div class="col-md-12">
 			<div id="j-main-container" class="j-main-container">
 				<div class="p-3">
 					<p class="m-0"><?php echo Text::_('COM_CACHE_PURGE_INSTRUCTIONS'); ?></p>
diff --git a/administrator/components/com_checkin/Controller/DisplayController.php b/administrator/components/com_checkin/Controller/DisplayController.php
index bf67681cce8cf..2e89ffc7d3365 100644
--- a/administrator/components/com_checkin/Controller/DisplayController.php
+++ b/administrator/components/com_checkin/Controller/DisplayController.php
@@ -39,9 +39,6 @@ class DisplayController extends BaseController
 	 */
 	public function display($cachable = false, $urlparams = array())
 	{
-		// Load the submenu.
-		$this->addSubmenu($this->input->getWord('option', 'com_checkin'));
-
 		return parent::display();
 	}
 
@@ -73,33 +70,4 @@ public function checkin()
 
 		$this->setRedirect('index.php?option=com_checkin');
 	}
-
-	/**
-	 * Configure the Linkbar.
-	 *
-	 * @param   string  $vName  The name of the active view.
-	 *
-	 * @return  void
-	 *
-	 * @since   1.6
-	 */
-	protected function addSubmenu($vName)
-	{
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_CHECKIN'),
-			'index.php?option=com_checkin',
-			$vName == 'com_checkin'
-		);
-
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_CLEAR_CACHE'),
-			'index.php?option=com_cache',
-			$vName == 'cache'
-		);
-		\JHtmlSidebar::addEntry(
-			Text::_('JGLOBAL_SUBMENU_PURGE_EXPIRED_CACHE'),
-			'index.php?option=com_cache&view=purge',
-			$vName == 'purge'
-		);
-	}
 }
diff --git a/administrator/components/com_checkin/View/Checkin/HtmlView.php b/administrator/components/com_checkin/View/Checkin/HtmlView.php
index 73987d8e3bc4f..ef5613fa8eaf6 100644
--- a/administrator/components/com_checkin/View/Checkin/HtmlView.php
+++ b/administrator/components/com_checkin/View/Checkin/HtmlView.php
@@ -44,13 +44,6 @@ class HtmlView extends BaseHtmlView
 	 */
 	protected $state;
 
-	/**
-	 * The sidebar markup
-	 *
-	 * @var  string
-	 */
-	protected $sidebar;
-
 	/**
 	 * Form object for search filters
 	 *
@@ -90,7 +83,6 @@ public function display($tpl = null)
 		}
 
 		$this->addToolbar();
-		$this->sidebar = \JHtmlSidebar::render();
 
 		return parent::display($tpl);
 	}
diff --git a/administrator/components/com_checkin/tmpl/checkin/default.php b/administrator/components/com_checkin/tmpl/checkin/default.php
index bf114f8d07abf..00bf5b222cda5 100644
--- a/administrator/components/com_checkin/tmpl/checkin/default.php
+++ b/administrator/components/com_checkin/tmpl/checkin/default.php
@@ -21,10 +21,7 @@
 ?>
 <form action="<?php echo Route::_('index.php?option=com_checkin'); ?>" method="post" name="adminForm" id="adminForm">
 	<div class="row">
-		<div id="j-sidebar-container" class="col-md-2">
-			<?php echo $this->sidebar; ?>
-		</div>
-		<div class="col-md-10">
+		<div class="col-md-12">
 			<div id="j-main-container" class="j-main-container">
 				<?php echo LayoutHelper::render('joomla.searchtools.default', array('view' => $this)); ?>
 				<?php if ($this->total > 0) : ?>
diff --git a/administrator/language/en-GB/en-GB.ini b/administrator/language/en-GB/en-GB.ini
index 1e47068bb4f0c..6b3135b3c4da5 100644
--- a/administrator/language/en-GB/en-GB.ini
+++ b/administrator/language/en-GB/en-GB.ini
@@ -602,9 +602,6 @@ JGLOBAL_STAGE_PROCESS="Process"
 JGLOBAL_START_PUBLISH_AFTER_FINISH="Item start publishing date must be before finish publishing date"
 JGLOBAL_SUBHEADING_DESC="Optional text to show as a subheading."
 JGLOBAL_SUBHEADING_LABEL="Page Subheading"
-JGLOBAL_SUBMENU_CHECKIN="Check-in"
-JGLOBAL_SUBMENU_CLEAR_CACHE="Clear Cache"
-JGLOBAL_SUBMENU_PURGE_EXPIRED_CACHE="Clear Expired Cache"
 JGLOBAL_SUBSLIDER_BLOG_EXTENDED_LABEL="The option below gives the ability to include articles from subcategories in the Blog layout."
 JGLOBAL_SUBSLIDER_BLOG_LAYOUT_LABEL="If a field is left blank, global settings will be used."
 JGLOBAL_SUBSLIDER_DRILL_CATEGORIES_LABEL="These options are also used when you select <br>one of the category links, on the first page and/or thereafter,<br>unless they are changed for a specific menu item."