remove memoryinstrumentation

Source/core/platform/audio/HRTFKernel.cpp

Index: Source/core/platform/audio/HRTFKernel.cpp
diff --git a/Source/core/platform/audio/HRTFKernel.cpp b/Source/core/platform/audio/HRTFKernel.cpp
index affa5f45b8a760fa7136e993d7726293a9cca889..7029cb9148622cd1f52998ee9a9588e03a73311a 100644
--- a/Source/core/platform/audio/HRTFKernel.cpp
+++ b/Source/core/platform/audio/HRTFKernel.cpp
@@ -36,7 +36,6 @@
 #include "Biquad.h"
 #include "FFTFrame.h"
 #include "FloatConversion.h"
-#include "PlatformMemoryInstrumentation.h"
 #include <wtf/MathExtras.h>
 
 using namespace std;
@@ -133,12 +132,6 @@ PassRefPtr<HRTFKernel> HRTFKernel::createInterpolatedKernel(HRTFKernel* kernel1,
     return HRTFKernel::create(interpolatedFrame.release(), frameDelay, sampleRate1);
 }
 
-void HRTFKernel::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::AudioSharedData);
-    info.addMember(m_fftFrame, "fftFrame");
-}
-
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)