Revert "Fixes GCC 4.9 compilation. It now supplies its own _mm_shuffl…

…e_epi8 intrinsic."

This reverts commit b2c4901.

Breaks Windows build. GCC 4.9 isn't out yet anyway.

Source/Core/Common/Src/CommonFuncs.h

@@ -30,8 +30,8 @@ struct ArraySizeImpl : public std::extent<T>
 #define b16(x)  ( b8(x) | ( b8(x) >> 8) )  
 #define b32(x)  (b16(x) | (b16(x) >>16) )
 #define ROUND_UP_POW2(x)	(b32(x - 1) + 1)
-#if (defined __GNUC__ && !__GNUC_PREREQ(4,9))  \
-	&& !defined __SSSE3__ && !defined _M_GENERIC
+
+#if defined __GNUC__ && !defined __SSSE3__ && !defined _M_GENERIC
 #include <emmintrin.h>
 static __inline __m128i __attribute__((__always_inline__))
 _mm_shuffle_epi8(__m128i a, __m128i mask)