DS: Fix some quirks in the NDS build system, remove some dead code

* remove (S)RAM save code (it has not been in use for quite some time)
* remove the lz compressor (was only used by ram save code)
* OPT_SPEED was set incorrectly
* dsmain.cpp was misspelled as ds_main.cpp
* remove unsed arm9 libcartreset (the copy in the arm7 directory
  still is around, though)

svn-id: r50741

1 files changed, 2 insertions, 18 deletions

diff --git a/backends/platform/ds/arm9/source/osystem_ds.cpp b/backends/platform/ds/arm9/source/osystem_ds.cpp
index 09617c17b0..55475b0bff 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.cpp
+++ b/backends/platform/ds/arm9/source/osystem_ds.cpp
@@ -729,26 +729,10 @@ void OSystem_DS::quit() {
 }
 
 Common::SaveFileManager *OSystem_DS::getSavefileManager() {
-	bool forceSram;
-
-	if (ConfMan.hasKey("forcesramsave", "ds")) {
-		forceSram = ConfMan.getBool("forcesramsave", "ds");
-	} else {
-		forceSram = false;
-	}
-	if (forceSram) {
-		consolePrintf("Using SRAM save method!\n");
-	}
-
-	if (DS::isGBAMPAvailable() && (!forceSram)) {
+	if (DS::isGBAMPAvailable()) {
 		return &mpSaveManager;
-	} else {
-#ifdef GBA_SRAM_SAVE
-		return &saveManager;
-#else
-		return NULL;
-#endif
 	}
+	return NULL;
 }