remove 32 bit gcc version of UV transpose

TBR=harryjin@google.com
BUG=libyuv:481

Review URL: https://webrtc-codereview.appspot.com/52249004.

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1457
+Version: 1459
 License: BSD
 License File: LICENSE
 

include/libyuv/rotate_row.h

@@ -42,11 +42,6 @@ extern "C" {
 #define HAS_TRANSPOSEWX8_SSSE3
 #endif
 
-// The following are available for 32 bit GCC but not clang.
-#if !defined(LIBYUV_DISABLE_X86) && defined(__i386__) && !defined(__clang__)
-#define HAS_TRANSPOSEUVWX8_SSE2
-#endif
-
 // The following are available for 64 bit GCC but not NaCL:
 #if !defined(LIBYUV_DISABLE_X86) && !defined(__native_client__) && \
     defined(__x86_64__)

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1457
+#define LIBYUV_VERSION 1459
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT