Remove another unnecessary application_name specification in test

see 8e93a51

Author: petere

src/test/subscription/t/100_bugs.pl

@@ -51,7 +51,7 @@
 	"CREATE PUBLICATION pub1 FOR ALL TABLES");
 
 $node_subscriber->safe_psql('postgres',
-	"CREATE SUBSCRIPTION sub1 CONNECTION '$publisher_connstr application_name=sub1' PUBLICATION pub1");
+	"CREATE SUBSCRIPTION sub1 CONNECTION '$publisher_connstr' PUBLICATION pub1");
 
 $node_publisher->wait_for_catchup('sub1');