core: Clean up 32bit code.

pcsx2/SingleRegisterTypes.h

@@ -56,11 +56,7 @@ __forceinline static r64 r64_from_u32x2(u32 lo, u32 hi)
 
 __forceinline static r64 r64_from_u64(u64 val)
 {
-#ifdef _M_X86_64
 	return _mm_cvtsi64_si128(val);
-#else
-	return r64_from_u32x2(val, val >> 32);
-#endif
 }
 
 __forceinline static r128 r128_load(const void* ptr)

pcsx2/x86/BaseblockEx.h

@@ -255,8 +255,4 @@ static inline void recLUT_SetPage(uptr reclut[0x10000], u32 hwlut[0x10000],
 		hwlut[page] = 0u - (pagebase << 16);
 }
 
-#if defined(_M_X86_64)
 static_assert(sizeof(BASEBLOCK) == 8, "BASEBLOCK is not 8 bytes");
-#else
-static_assert(sizeof(BASEBLOCK) == 4, "BASEBLOCK is not 4 bytes");
-#endif

pcsx2/x86/ix86-32/recVTLB.cpp

@@ -140,9 +140,6 @@ static void iMOV64_Smart(const xIndirectVoid& destRm, const xIndirectVoid& srcRm
 	_fullread:
 	movzx eax,al;
 	sub   ecx,eax;
- #ifndef __M_X86_64 // The x86-64 marker will be cleared by using 32-bit ops
-	sub   ecx,0x80000000;
- #endif
 	call [eax+stuff];
 	cont:
 	........