[submodules] remove qhotkey from gitmodules

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.81%. Comparing base (981b86c) to head (c480765).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #3531 +/- ## ======================================= Coverage 88.81% 88.81% ======================================= Files 253 253 Lines 14121 14121 ======================================= Hits 12542 12542 Misses 1579 1579 ```

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