ha_innobase::start_stmt(): Remove the check for

prebuilt->stored_select_lock_type being LOCK_X or LOCK_S.
This would cause false alarms with INSERT ... SELECT, which would use
LOCK_NONE in innodb_locks_unsafe_for_binlog mode.  (Bug #10746)

handler/ha_innodb.cc

@@ -6177,25 +6177,11 @@ ha_innobase::start_stmt(
 			1) ::store_lock(),
 			2) ::external_lock(),
 			3) ::init_table_handle_for_HANDLER(), and
-			4) :.transactional_table_lock(). */
+			4) ::transactional_table_lock(). */
 
 			prebuilt->select_lock_type =
 				prebuilt->stored_select_lock_type;
 		}
-
-		if (prebuilt->stored_select_lock_type != LOCK_S
-			&& prebuilt->stored_select_lock_type != LOCK_X) {
-			sql_print_error(
-				"stored_select_lock_type is %lu inside "
-				"::start_stmt()!",
-				prebuilt->stored_select_lock_type);
-
-			/* Set the value to LOCK_X: this is just fault
-			tolerance, we do not know what the correct value
-			should be! */
-
-			prebuilt->select_lock_type = LOCK_X;
-		}
 	}
 
 	trx->detailed_error[0] = '\0';