will I be forced to use WPMU DEV plugin

Hi,

I installed the WPMU DEV plugin, I did not want it after using it for a bit and removed it.

Will I ever be forced to use the WPMU DEV plugin?

Or will I always be able to install any plugin's with the WPMU DEV plugin?

Thanks!

PS: I am test driving the e-newsletter. With a membership can I install any plug in and theme on any website I develop with wordpress?