Don't enable or disable the Bluetooth adapter automatically.

bramble-java/src/main/java/org/briarproject/bramble/plugin/bluetooth/JavaBluetoothPlugin.java

@@ -62,22 +62,6 @@ class JavaBluetoothPlugin
 		return localDevice != null && LocalDevice.isPowerOn();
 	}
 
-	@Override
-	void enableAdapter() {
-		// Nothing we can do on this platform
-		LOG.info("Could not enable Bluetooth");
-	}
-
-	@Override
-	void disableAdapterIfEnabledByUs() {
-		// We didn't enable it so we don't need to disable it
-	}
-
-	@Override
-	void setEnabledByUs() {
-		// Irrelevant on this platform
-	}
-
 	@Nullable
 	@Override
 	String getBluetoothAddress() {