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/delayed.test

@@ -3,7 +3,9 @@
 # (Can't be tested with purify :( )
 #
 
+--disable_warnings
 drop table if exists t1;
+--enable_warnings
 create table t1 (a char(10), tmsp timestamp);
 insert into t1 set a = 1;
 insert delayed into t1 set a = 2;