The biggest win from my perspective is the configuration sections for "Generated password entropy" and "Password generation algorithm" will not show up on the account administration page with the submodule disabled. (My most common use case for genpass is to make administrators' lives easier by not requiring them to fill in a throw-away password every time they invite a user; a pile of options above the e-mail text editing works against this!)
Existing installations of genpass would have the submodule enabled for them so functionality remains the same.
If you're willing to entertain this, i'd work up a patch.
Incidentally, what's with the function name "_GENPASS_REQUIRED_entropy()"— a victim of a find-replace sometime in the past when the constants were introduced?
Fixed
2.0
Code
Closing this off due to the age.
A simpler way to approach this might be to tidy up the UI, or re-order items rather than splitting the module apart. The parts being proposed to cut out are simply things that could be turned on/off with an option.
As of 2.0.0, the additional entropy password generation can be turned off in the settings.
Automatically closed - issue fixed for 2 weeks with no activity.