Changed mysql-test to print warnings for not existing table to DROP TABLE

Cleaned up test; Removed wrong DROP TABLE commands and use standard table and database names.
changed store_warning() -> push_warning_print()

mysql-test/t/kill.test

@@ -11,7 +11,10 @@ connect (con2, localhost, root,,);
 
 #remember id of con1
 connection con1;
+--disable_warnings
 drop table if exists t1;
+--enable_warnings
+
 create table t1 (kill_id int);
 insert into t1 values(connection_id());