weird languages available at sign up stage

inside wp-content/languages I have:

continents-cities-ro_RO.mo Delete File
continents-cities-ro_RO.po Delete File
de_DE.mo Delete File
de_DE.po Delete File
ms-ro_RO.mo Delete File
ms-ro_RO.po Delete File
ro_RO.mo Delete File
ro_RO.po Delete File

but when a user signs up he can chose between:

English
Corsican
German
Malay
Romanian

Now where does the Corsican and Malay come from??? I very much would like to remove those!
for a live demonstration, check: http://zice.ro and click on Inregistreaza-te