Remove returning models from block/unblock.

lint fixes.

js/blocked_number_controller.js

@@ -47,29 +47,25 @@
       // Make sure we don't block ourselves
       if (ourNumber === number) {
         window.log.info('BlockedNumberController: Cannot block yourself!');
-        return null;
+        return;
       }
 
       storage.addBlockedNumber(number);
 
       // Make sure we don't add duplicates
-      const exists = blockedNumbers.getNumber(number);
-      if (exists)
-        return exists;
+      if (blockedNumbers.getNumber(number))
+        return;
 
-      return blockedNumbers.add({ number });
+      blockedNumbers.add({ number });
     },
     unblock(number) {
       storage.removeBlockedNumber(number);
 
       // Make sure we don't add duplicates
-      const exists = blockedNumbers.getNumber(number);
-      if (exists) {
-        blockedNumbers.remove(exists);
-        return exists;
+      const model = blockedNumbers.getNumber(number);
+      if (model) {
+        blockedNumbers.remove(model);
       }
-
-      return null;
     },
     unblockAll() {
       const all = blockedNumbers.models;

preload.js

@@ -77,8 +77,9 @@ window.setMediaPermissions = enabled =>
   ipc.send('set-media-permissions', enabled);
 window.getMediaPermissions = () => ipc.sendSync('get-media-permissions');
 
-// Events for updating block number states across different windows
-// In this case we need these to update the blocked number collection on the main window from the settings window
+// Events for updating block number states across different windows.
+// In this case we need these to update the blocked number
+//  collection on the main window from the settings window.
 window.onUnblockNumber = number => ipc.send('on-unblock-number', number);
 
 ipc.on('on-unblock-number', (event, number) => {

settings_preload.js

@@ -26,8 +26,9 @@ window.getAppInstance = () => config.appInstance;
 
 window.closeSettings = () => ipcRenderer.send('close-settings');
 
-// Events for updating block number states across different windows
-// In this case we need these to update the blocked number collection on the main window from the settings window
+// Events for updating block number states across different windows.
+// In this case we need these to update the blocked number
+//  collection on the main window from the settings window.
 window.onUnblockNumber = number => ipcRenderer.send('on-unblock-number', number);
 
 window.getDeviceName = makeGetter('device-name');