compiler: Remove unsupported_fn_ptr_calling_conventions lint

Author: workingjubilee

compiler/rustc_lint/src/lib.rs

@@ -610,6 +610,7 @@ fn register_builtins(store: &mut LintStore) {
         "converted into hard error, see issue #127323 \
          <https://github.com/rust-lang/rust/issues/127323> for more information",
     );
+    store.register_removed("unsupported_fn_ptr_calling_conventions", "converted into hard error");
     store.register_removed(
         "undefined_naked_function_abi",
         "converted into hard error, see PR #139001 \

compiler/rustc_lint_defs/src/builtin.rs

@@ -123,7 +123,6 @@ declare_lint_pass! {
         UNSAFE_OP_IN_UNSAFE_FN,
         UNSTABLE_NAME_COLLISIONS,
         UNSTABLE_SYNTAX_PRE_EXPANSION,
-        UNSUPPORTED_FN_PTR_CALLING_CONVENTIONS,
         UNUSED_ASSIGNMENTS,
         UNUSED_ASSOCIATED_TYPE_BOUNDS,
         UNUSED_ATTRIBUTES,