Remove using a donor ROM for DSi-Enhanced games (but keep using it for DSiWarehax)

Fixes #1924

Author: RocketRobz

retail/arm9/source/conf_sd.cpp

@@ -1202,7 +1202,7 @@ int loadFromSD(configuration* conf, const char *bootstrapPath) {
 		if (conf->useSdk20Donor) {
 			donorNdsFile = fopen(conf->donor20Path, "rb");
 			twlDonor = false;
-		} else if ((REG_SCFG_EXT7 == 0 || (!conf->isDSiWare && a7mbk6 == 0x00403000))
+		} else if (REG_SCFG_EXT7 == 0
 				&& (conf->dsiMode > 0 || conf->isDSiWare) && (a7mbk6 == (dsiEnhancedMbk ? 0x080037C0 : 0x00403000) || (romTid[0] == 'H' && ndsArm7Size < 0xC000 && ndsArm7idst == 0x02E80000 && (REG_MBK9 & 0x00FFFFFF) != 0x00FFFF0F))) {
 			if (romTid[0] == 'H' && ndsArm7Size < 0xC000 && ndsArm7idst == 0x02E80000) {
 				if (!nandMounted && strncmp((dsiEnhancedMbk ? conf->donorTwl0Path : conf->donorTwlOnly0Path), "nand:", 5) == 0) {

retail/bootloaderi/source/arm7/main.arm7.c

@@ -1792,11 +1792,6 @@ int arm7_main(void) {
 			} else { */
 				u32 add = 0x8FC000; // 0x02FFC000
 				u16 len = isDSiWare ? 0x1000 : 0x17B0;
-				if (*(u32*)0x02FFE1A0 != 0x00403000) {
-					const u16 size = 0x1850;
-					add -= size;
-					len += size;
-				}
 				tonccpy((char*)0x02700000+add, (char*)0x02700000, len);	// Move FAT table cache elsewhere
 				romFile->fatTableCache = (u32*)((u32)romFile->fatTableCache+add);
 				savFile->fatTableCache = (u32*)((u32)savFile->fatTableCache+add);