remove zen styling (#160)

app/mixins/editor-base-route.js

@@ -9,7 +9,6 @@ import ctrlOrCmd from 'ghost-admin/utils/ctrl-or-cmd';
 
 let generalShortcuts = {};
 generalShortcuts[`${ctrlOrCmd}+alt+p`] = 'publish';
-generalShortcuts['alt+shift+z'] = 'toggleZenMode';
 
 export default Mixin.create(styleBody, ShortcutsRoute, {
     classNames: ['editor'],
@@ -36,10 +35,6 @@ export default Mixin.create(styleBody, ShortcutsRoute, {
             controller.send('save');
         },
 
-        toggleZenMode() {
-            $('body').toggleClass('zen');
-        },
-
         willTransition(transition) {
             let controller = this.get('controller');
             let scratch = controller.get('model.scratch');

app/mixins/shortcuts-route.js

@@ -13,8 +13,7 @@ import ShortcutsMixin from 'ghost-admin/mixins/shortcuts';
  *
  * ```javascript
  * shortcuts: {
- *     'ctrl+s, command+s': 'save',
- *     'ctrl+alt+z': 'toggleZenMode'
+ *     'ctrl+s, command+s': 'save'
  * }
  * ```
  * For more complex actions, shortcuts can instead have their value

app/mixins/shortcuts.js

@@ -23,8 +23,7 @@ key.setScope('default');
  *
  * ```javascript
  * shortcuts: {
- *     'ctrl+s, command+s': 'save',
- *     'ctrl+alt+z': 'toggleZenMode'
+ *     'ctrl+s, command+s': 'save'
  * }
  * ```
  * For more complex actions, shortcuts can instead have their value