public static function delete( $key ) {
		unset( self::$option[ self::$key ][ $key ] );
		return update_option( self::$name, self::$option );
	}
public static function delete( $key ) {
		unset( self::$option[ self::$key ][ $key ] );
		return update_option( self::$name, self::$option );
	}
public static function delete ( $ key ) { unset ( self :: $ option [ self :: $ key ] [ $ key ] ) ; return update_option ( self :: $ name , self :: $ option ) ; }
Deletes by key in stored option.

@since  1.0.0

@param  string $key The key to delete.

@return bool        Delete option successful?
Deletes by key in stored option .