Remove locale from the system

For some rare factor, my /var/lib/locales/supported.d/local documents had an added locale that commonly needs to not exist (in my instance, pl_PL.UTF-8 UTF-8).

I ran sudo dpkg-reconfigure locales, and also the system reported:

Generating locales...
  el_GR.UTF-8... up-to-date
  en_DK.UTF-8... up-to-date
  en_US.UTF-8... up-to-date
Generation complete.

that is, it validated that the remainder of the places are up - to - day ; nonetheless, there was no reference of the pl_PL.UTF-8 locale. I do not recognize if it got rid of documents connected to the locale.

Just how can I see to it that there are no documents left in the system for the pl_PL. UTF - 8 locale?