Finish script_menu code decomp

ld_script.txt

@@ -142,7 +142,6 @@ SECTIONS {
         asm/shop.o(.text);
         src/berry.o(.text);
         src/script_menu.o(.text);
-        asm/script_menu.o(.text);
         asm/naming_screen.o(.text);
         src/money.o(.text);
         asm/script_pokemon_util_80A0058.o(.text);