This is a spare part for Gimp 2.6
Is very easy screw up the Gimp brush folder by adding all sort of brushes found on the Net.
But then is not easy reset to the original state
well now is more easy, just move the old folder
away, and replace with this
And next time instead then add new plugin here, you may better place them into your USER script folder (usually in C:/document and setting /your-name/gimp/script )