StatusParser: Remove unused removeAttachmentLinks.

Brings down the vendor by over 200kb

package.json

@@ -22,12 +22,10 @@
     "cropperjs": "^1.4.3",
     "diff": "^3.0.1",
     "escape-html": "^1.0.3",
-    "karma-mocha-reporter": "^2.2.1",
     "localforage": "^1.5.0",
     "object-path": "^0.11.3",
     "phoenix": "^1.3.0",
     "portal-vue": "^2.1.4",
-    "sanitize-html": "^1.13.0",
     "v-click-outside": "^2.1.1",
     "vue": "^2.6.11",
     "vue-chat-scroll": "^1.2.1",
@@ -39,6 +37,7 @@
     "whatwg-fetch": "^2.0.3"
   },
   "devDependencies": {
+    "karma-mocha-reporter": "^2.2.1",
     "@babel/core": "^7.7.5",
     "@babel/plugin-transform-runtime": "^7.7.6",
     "@babel/preset-env": "^7.7.6",