Fix notification can't be killed when player is not playing.

Fix clicking on close (x) in notification does nothing when player has
neither playing nor paused state.

Signed-off-by: Yahor Berdnikau <egorr.berd@gmail.com>

ultrasonic/src/main/java/org/moire/ultrasonic/service/DownloadServiceImpl.java

@@ -1094,7 +1094,7 @@ public class DownloadServiceImpl extends Service implements DownloadService
 				}
 				setPlayerState(STOPPED);
 			}
-			else if (playerState == PAUSED)
+			else
 			{
 				setPlayerState(STOPPED);
 			}