remove unused i18n strings

src/_locales/en/messages.json

@@ -160,24 +160,6 @@
   "helpFeedback": {
     "message": "Help & Feedback"
   },
-  "emailUs": {
-    "message": "Email Us"
-  },
-  "emailUsDirectly": {
-    "message": "Email us directly to get help or leave feedback."
-  },
-  "visitOurWebsite": {
-    "message": "Visit Our Website"
-  },
-  "visitOurWebsiteDirectly": {
-    "message": "Visit our website to get help, news, email us, and/or learn more about how to use Bitwarden."
-  },
-  "fileBugReport": {
-    "message": "File a Bug Report"
-  },
-  "gitHubIssue": {
-    "message": "Open an issue at our GitHub repository."
-  },
   "sync": {
     "message": "Sync"
   },
@@ -1075,9 +1057,6 @@
     "message": "Organization",
     "description": "An entity of multiple related people (ex. a team or business organization)."
   },
-  "loading": {
-    "message": "Loading..."
-  },
   "types": {
     "message": "Types"
   },

src/popup/accounts/two-factor.component.html

@@ -59,7 +59,7 @@
         </ng-container>
         <ng-container *ngIf="selectedProviderType === providerType.U2f">
             <div class="content text-center">
-                <span *ngIf="!u2fReady">{{'loading' | i18n}}</span>
+                <span *ngIf="!u2fReady"><i class="fa fa-spinner fa-spin"></i></span>
                 <div *ngIf="u2fReady">
                     <p>{{'insertU2f' | i18n}}</p>
                     <img src="../images/u2fkey.jpg" alt="" class="img-rounded img-responsive" />