Remove redundancies of multiply() in FFTFrame.

Source/platform/audio/ipp/FFTFrameIPP.cpp

Index: Source/platform/audio/ipp/FFTFrameIPP.cpp
diff --git a/Source/platform/audio/ipp/FFTFrameIPP.cpp b/Source/platform/audio/ipp/FFTFrameIPP.cpp
index a88e241e4574599712ec0e7bafd7ebbb1198308f..454d55d6534cab6cf7063c59781fbee231d15e54 100644
--- a/Source/platform/audio/ipp/FFTFrameIPP.cpp
+++ b/Source/platform/audio/ipp/FFTFrameIPP.cpp
@@ -35,8 +35,6 @@
 
 #include "platform/audio/FFTFrame.h"
 
-#include "platform/audio/VectorMath.h"
-
 #include "wtf/MathExtras.h"
 
 namespace WebCore {
@@ -101,27 +99,6 @@ FFTFrame::~FFTFrame()
     ippsDFTFree_R_32f(m_DFTSpec);
 }
 
-void FFTFrame::multiply(const FFTFrame& frame)
-{
-    FFTFrame& frame1 = *this;
-    FFTFrame& frame2 = const_cast<FFTFrame&>(frame);
-
-    float* realP1 = frame1.realData();
-    float* imagP1 = frame1.imagData();
-    const float* realP2 = frame2.realData();
-    const float* imagP2 = frame2.imagData();
-
-    unsigned halfSize = fftSize() / 2;
-    float real0 = realP1[0];
-    float imag0 = imagP1[0];
-
-    VectorMath::zvmul(realP1, imagP1, realP2, imagP2, realP1, imagP1, halfSize);
-
-    // Multiply the packed DC/nyquist component
-    realP1[0] = real0 * realP2[0];
-    imagP1[0] = imag0 * imagP2[0];
-}
-
 void FFTFrame::doFFT(const float* data)
 {
     Ipp32f* complexP = m_complexData.data();