Localization of 'New Blog Templates' plugin


I used Codestyling Localization plugin to change "[Blocked by Super Admin]" text.
However, the change is not reflecting.

Two sets of language files are in the plugin folder blogtemplatefiles/languages/ -----> blog_templates.mo/po

I just want to remove [Blocked by Super Admin]. Is there a way to remove it safely (not affected by the update)?
Thank you so much in advance,