Removing a bunch of unused platform code.

Source/WebCore/platform/mac/SharedBufferMac.mm

Index: Source/WebCore/platform/mac/SharedBufferMac.mm
diff --git a/Source/WebCore/platform/mac/SharedBufferMac.mm b/Source/WebCore/platform/mac/SharedBufferMac.mm
index 228d69155e040eb4041ddd9a6e2083f7c6f7e3a9..f166ce4bab8a1bc84192db0f5972f5b000167ce3 100644
--- a/Source/WebCore/platform/mac/SharedBufferMac.mm
+++ b/Source/WebCore/platform/mac/SharedBufferMac.mm
@@ -49,12 +49,8 @@ using namespace WebCore;
 {
 #if !USE(WEB_THREAD)
     JSC::initializeThreading();
-#if PLATFORM(QT) && USE(QTKIT)
-    WTF::initializeMainThread();
-#else
     WTF::initializeMainThreadToProcessMainThread();
 #endif
-#endif // !USE(WEB_THREAD)
     WebCoreObjCFinalizeOnMainThread(self);
 }
 
@@ -114,14 +110,5 @@ CFDataRef SharedBuffer::createCFData()
     
     return (CFDataRef)RetainPtr<WebCoreSharedBufferData>(AdoptNS, [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this]).leakRef();
 }
-#if !(PLATFORM(QT) && USE(QTKIT))
-PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)
-{
-    NSData *resourceData = [NSData dataWithContentsOfFile:filePath];
-    if (resourceData) 
-        return SharedBuffer::wrapNSData(resourceData);
-    return 0;
-}
-#endif
 }