get rid of bad editor media queries in mobile.scss

app/assets/stylesheets/common/base/mobile.scss

@@ -1,19 +1 @@
-@media all
-and (min-device-width : 320px)
-and (max-device-width : 540px) {
-  #reply-control {
-    #reply-title { width: 250px; }
-    .wmd-controls {
-      #wmd-input {
-        width: 100%;
-        border-top: 0;
-      }
-      .preview-wrapper {
-        display: none;
-      }
-      .textarea-wrapper {
-        width: 100%;
-      }
-    }
-  }
-}
+// file no longer needed, mobile layout is in compose.scss

app/assets/stylesheets/mobile/compose.scss

@@ -5,7 +5,6 @@
   width: 47%;
 }
 
-
 .composer-popup-container {
 display: none;
 }
@@ -251,10 +250,6 @@ display: none;
       min-height: 100%;
       margin: 0;
       padding: 0;
-    }
-    .textarea-wrapper {
-      padding-right: 5px;
-      float: left;
       .popup-tip {
         margin-top: 3px;
         right: 4px;