Disable concurrent inserts for the kill.test

mysql-test/r/kill.result:
  Update test case result.
mysql-test/t/disabled.def:
  Re-enable kill test, bug was closed.
mysql-test/t/kill.test:
  Disable concurrent inserts for the kill test.

mysql-test/r/kill.result

+set @@global.concurrent_insert= 0;
 drop table if exists t1, t2, t3;
 create table t1 (kill_id int);
 insert into t1 values(connection_id());

mysql-test/t/disabled.def

@@ -17,7 +17,6 @@ ctype_big5               : BUG#26711 2007-06-21 Lars Test has never worked on Do
 federated_transactions   : Bug#29523 Transactions do not work
 events                   : Bug#32664 events.test fails randomly
 lowercase_table3         : Bug#32667 lowercase_table3.test reports to error log
-kill                 : Bug#29149: Test "kill" fails on Windows
 innodb_mysql         : Bug#32724: innodb_mysql.test fails randomly
 wait_timeout         : Bug#32801 wait_timeout.test fails randomly
 ctype_create         : Bug#32965 main.ctype_create fails

mysql-test/t/kill.test

@@ -6,6 +6,10 @@
 #
 -- source include/not_embedded.inc
 
+# Disable concurrent inserts to avoid test failures when reading the
+# connection id which was inserted into a table by another thread.
+set @@global.concurrent_insert= 0;
+
 connect (con1, localhost, root,,);
 connect (con2, localhost, root,,);