Remove duplicated entries

Fixes #689

Passwords/Default-Credentials/tomcat-betterdefaultpasslist.txt

@@ -1,7 +1,6 @@
 admin:
 admin:admanager
 admin:admin
-admin:admin
 ADMIN:ADMIN
 admin:adrole1
 admin:adroot
@@ -61,7 +60,6 @@ root:toor
 tomcat:
 tomcat:admanager
 tomcat:admin
-tomcat:admin
 tomcat:adrole1
 tomcat:adroot
 tomcat:ads3cret
@@ -71,7 +69,6 @@ tomcat:changethis
 tomcat:password
 tomcat:password1
 tomcat:s3cret
-tomcat:s3cret
 tomcat:tomcat
 xampp:xampp
 server_admin:owaspbwa