Remove support for non-native emoji rendering

It's not 2014 anymore, every reasonable platform supports displaying
emoji natively these days. Let's remove a filter that has ceased to
provide value.

css/glowingbear.css

@@ -693,21 +693,6 @@ li.buffer.indent.private a {
     user-select: none;
 }
 
-.emojione {
-    font-size: inherit;
-    height: 1em;
-    width: 1.1em;
-    min-height: 16px;
-    min-width: 16px;
-    display: inline-block;
-    margin: -.2ex .15em .2ex;
-    line-height: normal;
-    vertical-align: middle;
-}
-img.emojione {
-    width: auto;
-}
-
 #toast {
   position: fixed;
   left: 50%;

electron.makefile

@@ -9,7 +9,6 @@ bower:
 copylocal:
 	find bower_components \( -name "*min.js" -o -name "*min.css" \) -exec cp {} 3rdparty \;
 	cp -r bower_components/bootstrap/fonts .
-	cp bower_components/emojione/assets/sprites/emojione.sprites.svg 3rdparty
 
 # modify index.html to use local files
 uselocal: copylocal

index.html

@@ -415,7 +415,7 @@ npm run build-electron-{windows, darwin, linux}</pre>
               <td class="prefix"><span ng-class="::{'repeated-prefix': bufferline.prefixtext==bufferlines[$index-1].prefixtext}"><a ng-click="addMention(bufferline)"><span class="hidden-bracket" ng-if="::(bufferline.showHiddenBrackets)">&lt;</span><span ng-repeat="part in ::bufferline.prefix" ng-class="::part.classes" ng-bind="::part.text|prefixlimit:25"></span><span class="hidden-bracket" ng-if="::(bufferline.showHiddenBrackets)">&gt;</span></a></span></td><!--
            --><td class="message"><!--
              --><div ng-repeat="metadata in ::bufferline.metadata" plugin data="::metadata"></div><!--
-             --><span ng-repeat="part in ::bufferline.content" class="text" ng-class="::part.classes.concat(['line-' + part.$$hashKey.replace(':','_')])" ng-bind-html="::part.text | conditionalLinkify:part.classes.includes('cof-chat_host') | DOMfilter:'codify' | DOMfilter:'irclinky' | DOMfilter:'emojify':settings.enableJSEmoji | DOMfilter:'inlinecolour' |  DOMfilter:'latexmath':('.line-' + part.$$hashKey.replace(':','_')):settings.enableMathjax"></span>
+             --><span ng-repeat="part in ::bufferline.content" class="text" ng-class="::part.classes.concat(['line-' + part.$$hashKey.replace(':','_')])" ng-bind-html="::part.text | conditionalLinkify:part.classes.includes('cof-chat_host') | DOMfilter:'codify' | DOMfilter:'irclinky' | DOMfilter:'inlinecolour' |  DOMfilter:'latexmath':('.line-' + part.$$hashKey.replace(':','_')):settings.enableMathjax"></span>
               </td>
             </tr>
             <tr class="readmarker" ng-if="activeBuffer().lastSeen==$index">
@@ -590,16 +590,6 @@ npm run build-electron-{windows, darwin, linux}</pre>
                   </div>
                 </form>
               </li>
-              <li>
-                <form class="form-inline" role="form">
-                  <div class="checkbox">
-                    <label>
-                      <input type="checkbox" ng-model="settings.enableJSEmoji">
-                      Enable non-native Emoji support <span class="text-muted settings-help">Displays Emoji characters as images. Emoji provided free by <a href="http://emojione.com">http://emojione.com</a></span>
-                    </label>
-                  </div>
-                </form>
-              </li>
               <li>
                 <form class="form-inline" role="form">
                   <div class="checkbox">

js/filters.js

@@ -184,24 +184,6 @@ weechat.filter('getBufferQuickKeys', function () {
     };
 });
 
-// Emojifis the string using https://github.com/Ranks/emojione
-weechat.filter('emojify', function() {
-    return function(text, enable_JS_Emoji) {
-        if (enable_JS_Emoji === true && window.emojione !== undefined) {
-            // Emoji live in the D800-DFFF surrogate plane; only bother passing
-            // this range to CPU-expensive unicodeToImage();
-            var emojiRegex = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
-            if (emojiRegex.test(text)) {
-                return emojione.unicodeToImage(text);
-            } else {
-                return(text);
-            }
-        } else {
-            return(text);
-        }
-    };
-});
-
 weechat.filter('latexmath', function() {
     return function(text, selector, enabled) {
         if (!enabled || typeof(katex) === "undefined") {

js/glowingbear.js

@@ -59,7 +59,6 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
         'fontsize': '14px',
         'fontfamily': (utils.isMobileUi() ? 'sans-serif' : 'Inconsolata, Consolas, Monaco, Ubuntu Mono, monospace'),
         'readlineBindings': false,
-        'enableJSEmoji': !utils.isMobileUi(),
         'enableMathjax': false,
         'enableQuickKeys': true,
         'customCSS': '',
@@ -119,13 +118,6 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
         (["localhost", "127.0.0.1", "::1"].indexOf(window.location.hostname) === -1) &&
         !window.is_electron && !utils.isCordova();
 
-    if (window.is_electron) {
-        // Use packaged emojione sprite in the electron app
-        emojione.imageType = 'svg';
-        emojione.sprites = true;
-        emojione.imagePathSVGSprites = './3rdparty/emojione.sprites.svg';
-    }
-
     $rootScope.isWindowFocused = function() {
         if (typeof $scope.documentHidden === "undefined") {
             // Page Visibility API not supported, assume yes