Remove unnecessary parameter

Just get the parameter on server side

Change-Id: I433a63104dbb257e0d862be2ab61847cb36d1c15
diff --git a/media/libmedia/AudioEffect.cpp b/media/libmedia/AudioEffect.cpp
index 3317d57..8dfffb3 100644
--- a/media/libmedia/AudioEffect.cpp
+++ b/media/libmedia/AudioEffect.cpp
@@ -127,7 +127,7 @@
 
     mIEffectClient = new EffectClient(this);
 
-    iEffect = audioFlinger->createEffect(getpid(), &mDescriptor,
+    iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
             mIEffectClient, priority, io, mSessionId, &mStatus, &mId, &enabled);
 
     if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) {