Remove persist from mainReducer

Author: j-mccoll

src/app/reducers/mainReducer.js

@@ -217,9 +217,6 @@ export default (state, action) =>
           case 'paused':
             actionText = 'setPause';
             break;
-          case 'persist':
-            actionText = 'setPersist';
-            break;
           default:
             break;
         }