code: def unregisterChecker(self, checker):
          
          self.linter._checkers[checker.name].remove(checker)
          if checker in self.linter._reports:
              del self.linter._reports[checker]
          if checker in self.linter.options_providers:
              self.linter.options_providers.remove(checker)
docs: Remove a checker from the list of registered checkers.
  
          @param checker: the checker to remove