Bug 1422031 - Remove remaining nav-button style parts in extensions. r=rhelmer

toolkit/mozapps/extensions/content/extensions.xul

@@ -131,7 +131,7 @@
          command="cmd_focusSearch"/>
   </keyset>
   <hbox flex="1">
-    <vbox>
+    <vbox id="category-box">
       <!-- category list -->
       <richlistbox id="categories" flex="1">
         <richlistitem id="category-search" value="addons://search/"

toolkit/themes/shared/extensions/extensions.inc.css

@@ -289,15 +289,6 @@ button.warning {
   display: none;
 }
 
-.nav-button {
-  list-style-image: url(chrome://mozapps/skin/extensions/navigation.svg);
-  margin-top: 15px;
-  margin-bottom: 15px;
-  border-color: transparent;
-  -moz-context-properties: fill;
-  fill: currentColor;
-}
-
 /*** sorters ***/
 
 .sort-controls {

toolkit/themes/shared/extensions/navigation.svg

@@ -1,6 +0,0 @@
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16">
-  <path fill-opacity="context-fill-opacity" fill="context-fill" d="M14 7H4.4l4.3-4.3c.92-.94-.46-2.32-1.4-1.4l-6 6c-.4.38-.4 1 0 1.4l6 6c.94.92 2.32-.46 1.4-1.4L4.4 9H14c1.33 0 1.33-2 0-2z"/>
-</svg>

toolkit/themes/shared/mozapps.inc.mn

@@ -19,7 +19,6 @@
 
   skin/classic/mozapps/extensions/extensionGeneric-16.svg    (../../shared/extensions/extensionGeneric-16.svg)
   skin/classic/mozapps/extensions/utilities.svg              (../../shared/extensions/utilities.svg)
-  skin/classic/mozapps/extensions/navigation.svg             (../../shared/extensions/navigation.svg)
   skin/classic/mozapps/extensions/alerticon-warning.svg      (../../shared/extensions/alerticon-warning.svg)
   skin/classic/mozapps/extensions/alerticon-error.svg        (../../shared/extensions/alerticon-error.svg)
   skin/classic/mozapps/extensions/alerticon-info-positive.svg (../../shared/extensions/alerticon-info-positive.svg)