Remove `git_panel::GenerateCommitMessage` in favor of `git::GenerateCommitMessage` (#33421)

Michael Sloan created

`git_panel::GenerateCommitMessage` has no handler,
`git::GenerateCommitMessage` should be preferred. Could add a
`#[action(deprecated_aliases = ["git_panel::GenerateCommitMessage"])]`,
but decided not to because that action didn't work. So instead uses of
it will show up as keymap errors.

Closes #32667

Release Notes:

- N/A

Change summary

crates/git_ui/src/git_panel.rs | 1 -
1 file changed, 1 deletion(-)

Detailed changes