Remove unused fa classes

app/assets/stylesheets/fontawesome_custom.scss

@@ -185,14 +185,6 @@
   content: '\f1d3';
 }
 
-.fa-folder::before {
-  content: '\f07b';
-}
-
-.fa-archive::before {
-  content: '\f187';
-}
-
 .fa-thumb-tack::before {
   content: '\f08d';
 }
@@ -201,10 +193,6 @@
   content: '\f06d';
 }
 
-.fa-globe::before {
-  content: '\f0ac';
-}
-
 .fa-pause::before {
   content: '\f04c';
 }