GPGX remove an exception for debugging

The core can handle this case just fine so there doesn't appear to be a need for it anyway

BizHawk.Emulation.Cores/Consoles/Sega/gpgx/GPGX.IMemoryDomains.cs

@@ -53,15 +53,15 @@ private unsafe void SetMemoryDomains()
 				delegate (long addr)
 				{
 					var a = (uint)addr;
-					if (a >= 0x1000000)
-						throw new ArgumentOutOfRangeException();
+					//if (a >= 0x1000000)
+						//throw new ArgumentOutOfRangeException();
 					return LibGPGX.gpgx_peek_m68k_bus(a);
 				},
 				delegate (long addr, byte val)
 				{
 					var a = (uint)addr;
-					if (a >= 0x1000000)
-						throw new ArgumentOutOfRangeException();
+					//if (a >= 0x1000000)
+						//throw new ArgumentOutOfRangeException();
 					LibGPGX.gpgx_write_m68k_bus(a, val);
 				}, 2);