fixup! Use UsbMonitorService in foreground to wait for USB root, for …

…Android 14

* Fixes:
  `e: file:///home/runner/work/seedvault/seedvault/app/src/main/java/com/stevesoltys/seedvault/UsbMonitorService.kt:61:5 'onTimeout' overrides nothing`
* This method was only added in 15, per
  https://developer.android.com/reference/android/app/Service#onTimeout(int,%20int)

Change-Id: I4cbd2d06372f24ab8d86a29dec23b28dd2fb5ed8

app/src/main/java/com/stevesoltys/seedvault/UsbMonitorService.kt

@@ -58,10 +58,6 @@ class UsbMonitorService : Service() {
         Log.i(TAG, "onTimeout($startId)")
     }
 
-    override fun onTimeout(startId: Int, fgsType: Int) {
-        Log.i(TAG, "onTimeout($startId, $fgsType)")
-    }
-
     override fun onBind(intent: Intent?): IBinder? {
         return null
     }