Remove old iOS porting files.

include/utils/ios/SkStream_NSData.h

-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef SkStream_NSData_DEFINED
-#define SkStream_NSData_DEFINED
-
-#import <UIKit/UIKit.h>
-#include "SkStream.h"
-
-/** Returns an NSData with a copy of the stream's data. The caller must call
-    retain if it intends to keep the data object beyond the current stack-frame
-    (i.e. internally we're calling [NSData dataWithBytes...]
- */
-NSData* NSData_dataWithStream(SkStream* stream);
-
-/** Returns an NSData from the named resource (from main bundle).
-    The caller must call retain if it intends to keep the data object beyond
-    the current stack-frame
-    (i.e. internally we're calling [NSData dataWithContentsOfMappedFile...]
- */
-NSData* NSData_dataFromResource(const char name[], const char suffix[]);
-
-/** Wrap a stream around NSData.
- */
-class SkStream_NSData : public SkMemoryStream {
-public:
-            SkStream_NSData(NSData* data);
-    virtual ~SkStream_NSData();
-
-    static SkStream_NSData* CreateFromResource(const char name[],
-                                               const char suffix[]);
-
-private:
-    NSData* fNSData;
-};
-
-#endif