Function run_hook_uninstall 

pub fn run_hook_uninstall(path: &Path, yes: bool) -> Result<i32>

Uninstall the timebomb pre-commit hook.

• If the hook file does not exist or has no timebomb block, prints a message and exits 0.
• If the resulting cleaned file is empty (or only whitespace), deletes it.
• Otherwise writes the cleaned content back.