Remove the bionic *wscanf workarounds.

This is now fixed in bionic.

Change-Id: I0d280dffa8b962cf0f24d8422452c18872e6ec2b

include/cwchar

@@ -109,9 +109,6 @@ size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,
 #if defined(_LIBCPP_MSVCRT) || defined(__MINGW32__)
 #include <support/win32/support.h> // pull in *swprintf defines
 #endif // _LIBCPP_MSVCRT
-#ifdef __ANDROID__
-#include <support/android/wchar_bionic.h>
-#endif // __ANDROID__
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header

include/support/android/wchar_bionic.h

@@ -1,28 +0,0 @@
-// -*- C++ -*-
-//===------------------- support/android/wchar_bionic.h -------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H
-#define _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H
-
-#ifdef __ANDROID__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-int vfwscanf(FILE *, const wchar_t *, va_list);
-int vswscanf(const wchar_t *, const wchar_t *, va_list);
-int vwscanf(const wchar_t *, va_list);
-
-#ifdef __cplusplus
-}
-#endif
-#endif // __ANDROID__
-#endif // _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H