The remove_stock_content.zip file you have requested: Modifications / Server / Remove Stock Content - 432.83kb is not available. Perhaps try browsing all files for the game Wolfenstein: Enemy Territory and upload any files you want to share or are missing. This is the only information we could locate:
Ragnar_40k made the remove_stock_campaigns.pk3 a while ago since there were some questions about how to prevent players from starting votes for the "Central Europe" and the "North Africa" campaign. He now added pk3-files to also remove stock maps (li Ragnar_40k made the remove_stock_campaigns.pk3 a while ago. He now added pk3-files to also remove stock maps (like Seawall Battery) from the "Vote"-menu.