Remove Emoji support, so MAC addresses etc show correctly.

Thanks to xet7 ! Closes #1248, closes #323

client/components/main/editor.js

@@ -4,25 +4,6 @@ Template.editor.onRendered(() => {
   autosize($textarea);
 
   $textarea.escapeableTextComplete([
-    // Emoji
-    {
-      match: /\B:([-+\w]*)$/,
-      search(term, callback) {
-        callback(Emoji.values.map((emoji) => {
-          return emoji.includes(term) ? emoji : null;
-        }).filter(Boolean));
-      },
-      template(value) {
-        const imgSrc = Emoji.baseImagePath + value;
-        const image = `<img src="${imgSrc}.png" />`;
-        return image + value;
-      },
-      replace(value) {
-        return `:${value}:`;
-      },
-      index: 1,
-    },
-
     // User mentions
     {
       match: /\B@([\w.]*)$/,
@@ -47,7 +28,7 @@ Template.editor.onRendered(() => {
 import sanitizeXss from 'xss';
 
 // XXX I believe we should compute a HTML rendered field on the server that
-// would handle markdown, emoji and user mentions. We can simply have two
+// would handle markdown and user mentions. We can simply have two
 // fields, one source, and one compiled version (in HTML) and send only the
 // compiled version to most users -- who don't need to edit.
 // In the meantime, all the transformation are done on the client using the