Remove no-longer-necessary special case in TransactionHandle::get_module

Summary: I added this special case in D92129857 after observing that in tests, TypeAliasRef was unable to look up the main test module by name. D92916215 fixes this in a much better way, by adding the module path to TypeAliasRef, so we can remove the special case.

Reviewed By: migeed-z

Differential Revision: D93000984

fbshipit-source-id: 5f06fa3cf4fe2abdf14290f30a9968fbb9f93ae4

Author: rchen152

pyrefly/lib/state/state.rs

@@ -2128,12 +2128,6 @@ impl<'a> TransactionHandle<'a> {
         path: Option<&ModulePath>,
         dep: ModuleDep,
     ) -> FindingOrError<ArcId<ModuleDataMut>> {
-        if module == self.module_data.handle.module()
-            && path.is_none_or(|path| path == self.module_data.handle.path())
-        {
-            return FindingOrError::new_finding(self.module_data.dupe());
-        }
-
         let cached = {
             let deps_read = self.module_data.deps.read();
             if let Some(ImportResolution::Resolved(handles)) = deps_read.get(&module)