arm64: remove dead code
diff --git a/arch/AArch64/AArch64Mapping.c b/arch/AArch64/AArch64Mapping.c
index 3af4a2e..bd06eaa 100644
--- a/arch/AArch64/AArch64Mapping.c
+++ b/arch/AArch64/AArch64Mapping.c
@@ -17043,5 +17043,4 @@
 		i = name2id(alias_insn_name_maps, ARR_SIZE(alias_insn_name_maps), name);
 
 	return (i != -1)? i : ARM64_REG_INVALID;
-	return 0;
 }