Page toolbar visual tweaks and code clean up

Visual changes: 11 expected in Pixel
- Elements on the right side of page toolbar are now flush with the rest of the content

Change-Id: Id02cd379687fa292188a447c85951e7a87ade509

resources/skins.vector.styles/components/ArticleToolbar.less

@@ -12,10 +12,6 @@
 		font-size: @font-size-tabs;
 	}
 
-	@media ( min-width: @min-width-desktop-wide ) {
-		padding-right: @padding-horizontal-tabs - 1px;
-	}
-
 	.mw-portlet-views {
 		display: none;
 

resources/skins.vector.styles/components/MenuTabs.less

@@ -8,7 +8,6 @@
 /* Tab list items */
 .vector-menu-tabs {
 	float: left;
-	padding-left: @border-width-base;
 
 	/* focus and hover have outlines. Text underline interferes with bottom border */
 	.mw-list-item a:focus,

resources/skins.vector.styles/layouts/screen.less

@@ -214,11 +214,6 @@ body {
 	padding: @padding-content;
 }
 
-#p-namespaces {
-	background-image: none;
-	padding-left: 0;
-}
-
 .mw-footer {
 	border-top: @border-base;
 	padding: 0.75em;