Move Memchecks support out of debug only builds

It wouldn't impact performance until at least one memcheck is enabled.  Because of this, it can be used in release builds without much impact, the only thing that woudl change is the use of HasAny method instead of preprocessor conditionals.  Since the perforamnce decrease comes right when the first memcheck is added and restored when the last is removed, it basically is all beneficial and works the same way.

Source/Core/Core/HW/Memmap.h

@@ -11,11 +11,6 @@
 #include "Common/CommonTypes.h"
 #include "Core/PowerPC/PowerPC.h"
 
-// Enable memory checks in the Debug/DebugFast builds, but NOT in release
-#if defined(_DEBUG) || defined(DEBUGFAST)
-#define ENABLE_MEM_CHECK
-#endif
-
 // Global declarations
 class PointerWrap;
 namespace MMIO
@@ -72,7 +67,6 @@ void DoState(PointerWrap& p);
 void UpdateLogicalMemory(const PowerPC::BatTable& dbat_table);
 
 void Clear();
-bool AreMemoryBreakpointsActivated();
 
 // Routines to access physically addressed memory, designed for use by
 // emulated hardware outside the CPU. Use "Device_" prefix.