how to delete a context I have created a sample context just for testing its work, and now it appears on every page because I have used a block in my context. I want to remove the sample context. I have searched in Drupal docs but nothing useful there. Any ideas how to solve it.
You do it the same place where you add and edit contexts, the contexts admin page located at admin/structure/context. Context defined in code can't be deleted, but can instead be disabled.