Bug 1491706 - Remove unused .help-button styles. r=dao

Differential Revision: https://phabricator.services.mozilla.com/D5981

--HG--
extra : moz-landing-system : lando

toolkit/themes/shared/in-content/common.inc.css

@@ -280,80 +280,13 @@ xul|button[type="menu"] > xul|*.button-box > xul|*.button-menu-dropmarker {
   fill: -moz-DialogText;
 }
 
-xul|*.help-button {
-  min-width: 16px;
-  margin-inline-end: 0;
-  border-width: 0;
-  background-image: none;
-  box-shadow: none;
-  list-style-image: url("chrome://global/skin/in-content/help-glyph.svg");
-  -moz-context-properties: fill, stroke, stroke-opacity;
-  fill: #999;
-  stroke: #999;
-  stroke-opacity: 0;
-}
-
-xul|*.help-button:not([disabled="true"]):hover {
-  background-image: none;
-  /* Override default button background */
-  background-color: transparent;
-  fill: white;
-  stroke: #808080;
-  stroke-opacity: 1;
-}
-
-xul|*.help-button:not([disabled="true"]):hover:active {
-  background-image: none;
-  /* Override default button background */
-  background-color: transparent;
-  stroke: #666;
-}
-
-xul|*.close-icon > xul|*.button-box,
-xul|*.help-button > xul|*.button-box {
+xul|*.close-icon > xul|*.button-box {
   padding-top: 0;
   padding-bottom: 0;
   padding-right: 0 !important;
   padding-left: 0 !important;
 }
 
-xul|*.help-button > xul|*.button-box > xul|*.button-icon {
-  width: 16px;
-  height: 16px;
-}
-
-xul|*.help-button > xul|*.button-box > xul|*.button-text {
-  display: none;
-}
-
-html|*.help-button {
-  width: 16px;
-  height: 16px;
-  border: 0;
-  padding: 0;
-  display: inline-block;
-  background-image: url("chrome://global/skin/in-content/help-glyph.svg");
-  -moz-context-properties: fill, stroke, stroke-opacity;
-  fill: #999;
-  stroke: #999;
-  stroke-opacity: 0;
-  background-repeat: no-repeat;
-  background-position: center center;
-  background-size: contain;
-}
-
-html|*.help-button:hover {
-  fill: white;
-  stroke: #808080;
-  stroke-opacity: 1;
-  background-color: var(--in-content-category-background-hover);
-}
-
-html|*.help-button:hover:active {
-  stroke: #666;
-  background-color: var(--in-content-category-background-active);
-}
-
 html|*.numberbox-input::-moz-number-spin-box {
   margin-inline-end: 1px;
 }

toolkit/themes/shared/in-content/help-glyph.svg

@@ -1,10 +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="24" height="24" viewBox="0 0 24 24">
-  <!-- The context fill is applied to the question mark path and the context stroke is applied to the circle. -->
-  <circle fill="context-stroke" fill-opacity="context-stroke-opacity" stroke="context-stroke" stroke-width="2" cx="12" cy="12" r="11"/>
-  <path fill="context-fill" d="M12.2,4.9c-1.6,0-2.9,0.4-3.8,0.8L9.2,8c0.6-0.4,1.5-0.6,2.2-0.6c1.1,0,1.6,0.5,1.6,1.2 c0,0.7-0.6,1.3-1.3,2.1c-1,1.1-1.4,2.1-1.3,3.2l0,0.5h3V14c0-0.9,0.3-1.7,1.2-2.5c0.9-0.9,1.9-1.9,1.9-3.4 C16.6,6.4,15.2,4.9,12.2,4.9z M12,16.1c-1.1,0-1.9,0.8-1.9,1.9c0,1.1,0.8,1.9,1.9,1.9c1.2,0,1.9-0.8,1.9-1.9 C13.9,16.9,13.1,16.1,12,16.1z"/>
-</svg>
-

toolkit/themes/shared/jar.inc.mn

@@ -61,7 +61,6 @@ toolkit.jar:
   skin/classic/global/in-content/check.svg                 (../../shared/in-content/check.svg)
   skin/classic/global/in-content/check-partial.svg         (../../shared/in-content/check-partial.svg)
   skin/classic/global/in-content/dropdown.svg              (../../shared/in-content/dropdown.svg)
-  skin/classic/global/in-content/help-glyph.svg            (../../shared/in-content/help-glyph.svg)
   skin/classic/global/in-content/radio.svg                 (../../shared/in-content/radio.svg)
   skin/classic/global/reader/RM-Close-24x24.svg            (../../shared/reader/RM-Close-24x24.svg)
   skin/classic/global/reader/RM-Minus-24x24.svg            (../../shared/reader/RM-Minus-24x24.svg)