updateSelection minor simplification (#2292)

## Checklist

- [ ] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [ ] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [ ] I have not broken the cheatsheet

minor and similar to
#2277

Co-authored-by: Cedric Halbronn <cedric.halbronn@nccgroup.com>

Author: saidelike

packages/cursorless-engine/src/core/updateSelections/updateSelections.ts

@@ -382,12 +382,10 @@ export async function performEditsAndUpdateFullSelectionInfos(
     }
   };
 
-  await callFunctionAndUpdateSelectionInfos(
+  return await callFunctionAndUpdateSelectionInfos(
     rangeUpdater,
     func,
     editor.document,
     originalSelectionInfos,
   );
-
-  return selectionInfosToSelections(originalSelectionInfos);
 }