SoundPool: remove unused header file

Test: compiles
Bug: 63934228
Change-Id: I48014e809a37c8a9ab27d4e4688dd7e604f80119
diff --git a/media/jni/soundpool/SoundPool.cpp b/media/jni/soundpool/SoundPool.cpp
index ab0da07..21410ea 100644
--- a/media/jni/soundpool/SoundPool.cpp
+++ b/media/jni/soundpool/SoundPool.cpp
@@ -24,7 +24,6 @@
 #define USE_SHARED_MEM_BUFFER
 
 #include <media/AudioTrack.h>
-#include <media/IMediaHTTPService.h>
 #include <media/mediaplayer.h>
 #include "SoundPool.h"
 #include "SoundPoolThread.h"