Quick went through the source codes of this module.
It is very light weight module in which just implements the hook_init function and a configuration form. Other functions just provide the data required.
The uninstall hook will remove all configuration required by this module.
Quick went through the source codes of this module.
It is very light weight module in which just implements the hook_init function and a configuration form. Other functions just provide the data required.
The uninstall hook will remove all configuration required by this module.
See https://git.drupalcode.org/project/session_cookie_lifetime/-/blob/7.x-1.x/session_cookie_lifetime.install
Conclusion: It is safe to remove this module.