intrinsic-test: remove arm::argument module

This module only defined a single function that could easily just be
inlined into its only caller.

library/stdarch/crates/intrinsic-test/src/arm/argument.rs

@@ -1,15 +0,0 @@
-use crate::arm::intrinsic::ArmIntrinsicType;
-use crate::common::argument::Argument;
-
-// This functionality is present due to the nature
-// of how intrinsics are defined in the JSON source
-// of ARM intrinsics.
-impl Argument<ArmIntrinsicType> {
-    pub fn type_and_name_from_c(arg: &str) -> (&str, &str) {
-        let split_index = arg
-            .rfind([' ', '*'])
-            .expect("Couldn't split type and argname");
-
-        (arg[..split_index + 1].trim_end(), &arg[split_index + 1..])
-    }
-}

library/stdarch/crates/intrinsic-test/src/arm/json_parser.rs

@@ -89,7 +89,13 @@ fn json_to_intrinsic(
         .into_iter()
         .enumerate()
         .map(|(i, arg)| {
-            let (type_name, arg_name) = Argument::<ArmIntrinsicType>::type_and_name_from_c(&arg);
+            let (type_name, arg_name) = {
+                let split_index = arg
+                    .rfind([' ', '*'])
+                    .expect("Couldn't split type and argname");
+
+                (arg[..split_index + 1].trim_end(), &arg[split_index + 1..])
+            };
 
             let arg_ty = parse_intrinsic_type(type_name)
                 .unwrap_or_else(|_| panic!("Failed to parse argument '{arg}'"));

library/stdarch/crates/intrinsic-test/src/arm/mod.rs

@@ -1,4 +1,3 @@
-mod argument;
 mod config;
 mod intrinsic;
 mod json_parser;