remove dead code for STREAM_API

Bug: skia:
Change-Id: I5c5a65710af443c60a3d13fb309ce31309be7f74
Reviewed-on: https://skia-review.googlesource.com/49460
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/include/core/SkStream.h b/include/core/SkStream.h
index 2d7a8c5..e9e8881 100644
--- a/include/core/SkStream.h
+++ b/include/core/SkStream.h
@@ -101,16 +101,6 @@
      */
     virtual bool rewind() { return false; }
 
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    /** Duplicates this stream. If this cannot be done, returns NULL.
-     *  The returned stream will be positioned at the beginning of its data.
-     */
-    virtual SkStreamRewindable* duplicate() const { return nullptr; }
-    /** Duplicates this stream. If this cannot be done, returns NULL.
-     *  The returned stream will be positioned the same as this stream.
-     */
-    virtual SkStreamSeekable* fork() const { return nullptr; }
-#else
     /** Duplicates this stream. If this cannot be done, returns NULL.
      *  The returned stream will be positioned at the beginning of its data.
      */
@@ -123,7 +113,6 @@
     std::unique_ptr<SkStream> fork() const {
         return std::unique_ptr<SkStream>(this->onFork());
     }
-#endif
 
 //SkStreamSeekable
     /** Returns true if this stream can report it's current position. */
@@ -155,52 +144,39 @@
     virtual const void* getMemoryBase() { return nullptr; }
 
 private:
-#ifndef SK_SUPPORT_LEGACY_STREAM_API
     virtual SkStream* onDuplicate() const { return nullptr; }
     virtual SkStream* onFork() const { return nullptr; }
-#endif
 };
 
 /** SkStreamRewindable is a SkStream for which rewind and duplicate are required. */
 class SK_API SkStreamRewindable : public SkStream {
 public:
     bool rewind() override = 0;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamRewindable* duplicate() const override = 0;
-#else
     std::unique_ptr<SkStreamRewindable> duplicate() const {
         return std::unique_ptr<SkStreamRewindable>(this->onDuplicate());
     }
 private:
     SkStreamRewindable* onDuplicate() const override = 0;
-#endif
 };
 
 /** SkStreamSeekable is a SkStreamRewindable for which position, seek, move, and fork are required. */
 class SK_API SkStreamSeekable : public SkStreamRewindable {
 public:
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamSeekable* duplicate() const override = 0;
-#else
     std::unique_ptr<SkStreamSeekable> duplicate() const {
         return std::unique_ptr<SkStreamSeekable>(this->onDuplicate());
     }
-#endif
 
     bool hasPosition() const override { return true; }
     size_t getPosition() const override = 0;
     bool seek(size_t position) override = 0;
     bool move(long offset) override = 0;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamSeekable* fork() const override = 0;
-#else
+
     std::unique_ptr<SkStreamSeekable> fork() const {
         return std::unique_ptr<SkStreamSeekable>(this->onFork());
     }
 private:
     SkStreamSeekable* onDuplicate() const override = 0;
     SkStreamSeekable* onFork() const override = 0;
-#endif
 };
 
 /** SkStreamAsset is a SkStreamSeekable for which getLength is required. */
@@ -209,10 +185,6 @@
     bool hasLength() const override { return true; }
     size_t getLength() const override = 0;
 
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamAsset* duplicate() const override = 0;
-    SkStreamAsset* fork() const override = 0;
-#else
     std::unique_ptr<SkStreamAsset> duplicate() const {
         return std::unique_ptr<SkStreamAsset>(this->onDuplicate());
     }
@@ -222,7 +194,6 @@
 private:
     SkStreamAsset* onDuplicate() const override = 0;
     SkStreamAsset* onFork() const override = 0;
-#endif
 };
 
 /** SkStreamMemory is a SkStreamAsset for which getMemoryBase is required. */
@@ -230,10 +201,6 @@
 public:
     const void* getMemoryBase() override = 0;
 
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamMemory* duplicate() const override = 0;
-    SkStreamMemory* fork() const override = 0;
-#else
     std::unique_ptr<SkStreamMemory> duplicate() const {
         return std::unique_ptr<SkStreamMemory>(this->onDuplicate());
     }
@@ -243,7 +210,6 @@
 private:
     SkStreamMemory* onDuplicate() const override = 0;
     SkStreamMemory* onFork() const override = 0;
-#endif
 };
 
 class SK_API SkWStream : SkNoncopyable {
@@ -345,24 +311,17 @@
     bool isAtEnd() const override;
 
     bool rewind() override;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamAsset* duplicate() const override;
-#else
     std::unique_ptr<SkStreamAsset> duplicate() const {
         return std::unique_ptr<SkStreamAsset>(this->onDuplicate());
     }
-#endif
 
     size_t getPosition() const override;
     bool seek(size_t position) override;
     bool move(long offset) override;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkStreamAsset* fork() const override;
-#else
+
     std::unique_ptr<SkStreamAsset> fork() const {
         return std::unique_ptr<SkStreamAsset>(this->onFork());
     }
-#endif
 
     size_t getLength() const override;
 
@@ -370,10 +329,8 @@
     explicit SkFILEStream(std::shared_ptr<FILE>, size_t size, size_t offset);
     explicit SkFILEStream(std::shared_ptr<FILE>, size_t size, size_t offset, size_t originalOffset);
 
-#ifndef SK_SUPPORT_LEGACY_STREAM_API
     SkStreamAsset* onDuplicate() const override;
     SkStreamAsset* onFork() const override;
-#endif
 
     std::shared_ptr<FILE> fFILE;
     // My own council will I keep on sizes and offsets.
@@ -430,34 +387,26 @@
     size_t peek(void* buffer, size_t size) const override;
 
     bool rewind() override;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkMemoryStream* duplicate() const override;
-#else
+
     std::unique_ptr<SkMemoryStream> duplicate() const {
         return std::unique_ptr<SkMemoryStream>(this->onDuplicate());
     }
-#endif
 
     size_t getPosition() const override;
     bool seek(size_t position) override;
     bool move(long offset) override;
-#ifdef SK_SUPPORT_LEGACY_STREAM_API
-    SkMemoryStream* fork() const override;
-#else
+
     std::unique_ptr<SkMemoryStream> fork() const {
         return std::unique_ptr<SkMemoryStream>(this->onFork());
     }
-#endif
 
     size_t getLength() const override;
 
     const void* getMemoryBase() override;
 
 private:
-#ifndef SK_SUPPORT_LEGACY_STREAM_API
     SkMemoryStream* onDuplicate() const override;
     SkMemoryStream* onFork() const override;
-#endif
 
     sk_sp<SkData>   fData;
     size_t          fOffset;