Removed destructive SQL statements

Those two lines are downright irresponsible, someone is going to use this list to fuzz a web application and accidentally nuke a production database.

Fuzzing/big-list-of-naughty-strings.txt

@@ -543,8 +543,8 @@ http://a/%%30%30
 #
 #	Strings which can cause a SQL injection if inputs are not sanitized
 
-1;DROP TABLE users
-1'; DROP TABLE users-- 1
+1; SELECT 1
+1'; SELECT 1-- 1
 ' OR 1=1 -- 1
 ' OR '1'='1