Fix a typo in the test case.

mysql-test/r/rpl_loaddata.result

@@ -83,4 +83,4 @@ drop table t1;
 CREATE TABLE t1 (word CHAR(20) NOT NULL PRIMARY KEY) ENGINE=INNODB;
 LOAD DATA INFILE "../std_data_ln/words.dat" INTO TABLE t1;
 ERROR 23000: Duplicate entry 'Aarhus' for key 1
-DROP TABLE IF EXISTS t1;
+DROP TABLE t1;

mysql-test/t/rpl_loaddata.test

@@ -158,9 +158,7 @@ CREATE TABLE t1 (word CHAR(20) NOT NULL PRIMARY KEY) ENGINE=INNODB;
 --error 1062
 LOAD DATA INFILE "../std_data_ln/words.dat" INTO TABLE t1;
 
---disable warnings
-DROP TABLE IF EXISTS t1;
---enable warnings
+DROP TABLE t1;
 
 sync_with_master;
 # End of 4.1 tests