Simplify gpSP/mGBA selection logic

static/packages/Emu/Nintendo - GBA (gpSP)/Emu/GBA/launch.sh

@@ -18,28 +18,9 @@ mgba_save="$savedir/mGBA/$romname.srm"
 default_core=gpsp
 
 # check if gpSP save states exist
-if [ ! -f "$gpsp_state" ] && [ ! -f "$gpsp_save" ]; then
-    if [ -f "$mgba_save" ]; then
-        LD_PRELOAD=/mnt/SDCARD/miyoo/lib/libpadsp.so /mnt/SDCARD/.tmp_update/bin/prompt -r \
-            -t "GBA CORE CHANGED" \
-            -m "Default GBA core is now gpSP.\nYou have an mGBA save file\nfor this game." \
-            "Transfer save to gpSP" \
-            "Keep playing with mGBA"
+if [ ! -f "$gpsp_state" ] && [ ! -f "$gpsp_save" ] && [ [ -f "$mgba_state" ] || [ -f "$mgba_save" ] ]; then
+    default_core=mgba
 
-        retcode=$?
-
-        if [ $retcode -eq 0 ]; then
-            cp "$mgba_save" "$savedir/gpSP"
-        else
-            default_core=mgba
-        fi
-    elif [ -f "$mgba_state" ]; then
-        default_core=mgba
-    fi
-fi
-
-# if core is mgba, create a config file
-if [ "$default_core" = "mgba" ]; then
     mkdir -p "$homedir/.game_config"
     echo "core = \"mgba_libretro\"" > "$romcfgpath"
 fi