parameters: (self, key)
docstring: Deletes the build setting key from all child XCBuildConfiguration
      objects.
docstring_summary: Deletes the build setting key from all child XCBuildConfiguration
      objects.
docstring_tokens: Deletes the build setting key from all child XCBuildConfiguration objects .
function: def DelBuildSetting(self, key):
      """Deletes the build setting key from all child XCBuildConfiguration
      objects.
      """
  
      for configuration in self._properties['buildConfigurations']:
        configuration.DelBuildSetting(key)
function_tokens: def DelBuildSetting ( self , key ) : for configuration in self . _properties [ 'buildConfigurations' ] : configuration . DelBuildSetting ( key )