Removed the expandSidebar action

Since we don't even have a sidebar anymore, there is no point in expanding it.

resources/qml/Actions.qml

@@ -23,8 +23,6 @@ Item
     property alias viewLeftSideCamera: viewLeftSideCameraAction;
     property alias viewRightSideCamera: viewRightSideCameraAction;
 
-    property alias expandSidebar: expandSidebarAction;
-
     property alias deleteSelection: deleteSelectionAction;
     property alias centerSelection: centerSelectionAction;
     property alias multiplySelection: multiplySelectionAction;
@@ -415,11 +413,4 @@ Item
         text: catalog.i18nc("@action:menu", "Browse packages...")
         iconName: "plugins_browse"
     }
-
-    Action
-    {
-        id: expandSidebarAction;
-        text: catalog.i18nc("@action:inmenu menubar:view","Expand/Collapse Sidebar");
-        shortcut: "Ctrl+E";
-    }
 }

resources/qml/Menus/ViewMenu.qml

@@ -44,7 +44,8 @@ Menu
         MenuItem { action: Cura.Actions.viewRightSideCamera; }
     }
 
-    MenuSeparator {
+    MenuSeparator
+    {
         visible: UM.Preferences.getValue("cura/use_multi_build_plate")
     }
 
@@ -72,8 +73,5 @@ Menu
 
     MenuSeparator {}
 
-    MenuItem { action: Cura.Actions.expandSidebar; }
-	
-    MenuSeparator {}
     MenuItem { action: Cura.Actions.toggleFullScreen; }
 }