How to Remove Site Template from Custom Tab

Hi All,

I have created test site template with name MyTestTemplate and MyTestTemplate2. Since this site is used by many developers and designers.
Later I found that in the Solution Galllary does not have any such solution with name MyTestTemplate and MyTestTemplate2 but it was still showing in Custom TAB of Site Template.

After those templates were deleted in the Solutions Gallery, they were still listed in the Custom group of new site templates, and could still be used - maybe because they were still available in the Recycle Bin.

To hide them from the Create Site options, I restored them from the Recycle Bin, then chose Deactivate from each item's drop-down menu, and then deleted them again. That solved the problem.