remove unnecessary config from .t test

Summary: This config isn't really used anywhere, so let's prevent further confusion for anyone who sees it in the future like I did in D67711733

Reviewed By: quark-zju

Differential Revision: D67721553

fbshipit-source-id: 4f931447f928bbf0cc9eeec11ad5a313570c978c

eden/mononoke/tests/integration/edenapi/test-edenapi-suffixquery.t

@@ -6,7 +6,6 @@
 
   $ . "${TEST_FIXTURES}/library.sh"
   $ setup_common_config
-  $ setconfig experimental.edenapi-suffixquery=true
 
   $ start_and_wait_for_mononoke_server
   $ quiet testtool_drawdag -R repo << EOF