DROP COLUMN, DROP INDEX is wrongly claimed to be ALGORITHM=INSTANT

--source include/have_innodb.inc

CREATE TABLE t1(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=InnoDB;

--error ER_ALTER_OPERATION_NOT_SUPPORTED

ALTER TABLE t1 DROP b, ALGORITHM=INSTANT;

DROP TABLE t1;

@@ -2003,9 +2040,7 @@ ha_innobase::check_if_supported_inplace_alter(

 		af++;

 	}

-	if (supports_instant

-	    || !(ha_alter_info->handler_flags

-		 & ~(INNOBASE_ALTER_INSTANT | INNOBASE_INPLACE_IGNORE))) {

+	if (supports_instant) {

 		DBUG_RETURN(HA_ALTER_INPLACE_INSTANT);

 	}