remove superfluous return statements generated by coffeescript

app/assets/javascripts/preview_markdown.js

@@ -22,14 +22,14 @@
       mdText = form.find('textarea.markdown-area').val();
       if (mdText.trim().length === 0) {
         preview.text('Nothing to preview.');
-        return this.hideReferencedUsers(form);
+        this.hideReferencedUsers(form);
       } else {
         preview.text('Loading...');
-        return this.renderMarkdown(mdText, (function(_this) {
+        this.renderMarkdown(mdText, (function(_this) {
           return function(response) {
             preview.html(response.body);
             preview.renderGFM();
-            return _this.renderReferencedUsers(response.references.users, form);
+            _this.renderReferencedUsers(response.references.users, form);
           };
         })(this));
       }
@@ -40,9 +40,10 @@
         return;
       }
       if (text === this.ajaxCache.text) {
-        return success(this.ajaxCache.response);
+        success(this.ajaxCache.response);
+        return;
       }
-      return $.ajax({
+      $.ajax({
         type: 'POST',
         url: window.preview_markdown_path,
         data: {
@@ -55,16 +56,14 @@
               text: text,
               response: response
             };
-            return success(response);
+            success(response);
           };
         })(this)
       });
     };
 
     MarkdownPreview.prototype.hideReferencedUsers = function(form) {
-      var referencedUsers;
-      referencedUsers = form.find('.referenced-users');
-      return referencedUsers.hide();
+      form.find('.referenced-users').hide();
     };
 
     MarkdownPreview.prototype.renderReferencedUsers = function(users, form) {
@@ -73,15 +72,14 @@
       if (referencedUsers.length) {
         if (users.length >= this.referenceThreshold) {
           referencedUsers.show();
-          return referencedUsers.find('.js-referenced-users-count').text(users.length);
+          referencedUsers.find('.js-referenced-users-count').text(users.length);
         } else {
-          return referencedUsers.hide();
+          referencedUsers.hide();
         }
       }
     };
 
     return MarkdownPreview;
-
   })();
 
   markdownPreview = new window.MarkdownPreview();
@@ -93,15 +91,14 @@
   lastTextareaPreviewed = null;
 
   $.fn.setupMarkdownPreview = function() {
-    var $form, form_textarea;
-    $form = $(this);
-    form_textarea = $form.find('textarea.markdown-area');
-    form_textarea.on('input', function() {
-      return markdownPreview.hideReferencedUsers($form);
-    });
-    return form_textarea.on('blur', function() {
-      return markdownPreview.showPreview($form);
-    });
+    var $form = $(this);
+    $form.find('textarea.markdown-area')
+      .on('input', function() {
+        markdownPreview.hideReferencedUsers($form);
+      })
+      .on('blur', function() {
+        markdownPreview.showPreview($form);
+      });
   };
 
   $(document).on('markdown-preview:show', function(e, $form) {
@@ -115,7 +112,7 @@
     // toggle content
     $form.find('.md-write-holder').hide();
     $form.find('.md-preview-holder').show();
-    return markdownPreview.showPreview($form);
+    markdownPreview.showPreview($form);
   });
 
   $(document).on('markdown-preview:hide', function(e, $form) {
@@ -129,7 +126,7 @@
     // toggle content
     $form.find('.md-write-holder').show();
     $form.find('textarea.markdown-area').focus();
-    return $form.find('.md-preview-holder').hide();
+    $form.find('.md-preview-holder').hide();
   });
 
   $(document).on('markdown-preview:toggle', function(e, keyboardEvent) {
@@ -137,11 +134,11 @@
     $target = $(keyboardEvent.target);
     if ($target.is('textarea.markdown-area')) {
       $(document).triggerHandler('markdown-preview:show', [$target.closest('form')]);
-      return keyboardEvent.preventDefault();
+      keyboardEvent.preventDefault();
     } else if (lastTextareaPreviewed) {
       $target = lastTextareaPreviewed;
       $(document).triggerHandler('markdown-preview:hide', [$target.closest('form')]);
-      return keyboardEvent.preventDefault();
+      keyboardEvent.preventDefault();
     }
   });
 
@@ -149,14 +146,14 @@
     var $form;
     e.preventDefault();
     $form = $(this).closest('form');
-    return $(document).triggerHandler('markdown-preview:show', [$form]);
+    $(document).triggerHandler('markdown-preview:show', [$form]);
   });
 
   $(document).on('click', writeButtonSelector, function(e) {
     var $form;
     e.preventDefault();
     $form = $(this).closest('form');
-    return $(document).triggerHandler('markdown-preview:hide', [$form]);
+    $(document).triggerHandler('markdown-preview:hide', [$form]);
   });
 
 }).call(this);