Last warnings removed

Author: philips77

dfu/src/main/java/no/nordicsemi/android/dfu/BaseCustomDfuImpl.java

@@ -273,6 +273,7 @@ void handleNotification(final BluetoothGatt gatt, final BluetoothGattCharacteris
 		}
 	}
 
+	@SuppressWarnings("unused")
 	protected abstract UUID getControlPointCharacteristicUUID();
 
 	protected abstract UUID getPacketCharacteristicUUID();

dfu/src/main/java/no/nordicsemi/android/dfu/FileType.java

@@ -9,6 +9,5 @@
             DfuBaseService.TYPE_APPLICATION
         },
         flag = true)
-public @interface FileType {
-}
+public @interface FileType {}