Enable limited use of iOS devices on non Mac devices

Summary:
Context: https://fb.workplace.com/groups/flippersupport/permalink/1005193786627946/

I believe we can land this without knowing that it works, because iOS support is still disabled by default for non mac devices - you have to enable it in settings to switch it on.

Reviewed By: passy

Differential Revision: D24893757

fbshipit-source-id: c9db515a7807c94a0d5e509017dd4e1796d24f6d

desktop/app/src/dispatcher/iOSDevice.tsx

@@ -264,10 +264,6 @@ export async function getActiveDevicesAndSimulators(
 }
 
 export default (store: Store, logger: Logger) => {
-  // monitoring iOS devices only available on MacOS.
-  if (process.platform !== 'darwin') {
-    return;
-  }
   if (!store.getState().settingsState.enableIOS) {
     return;
   }