Run FWaaS and SFC jobs on all file changes

When moving these tests to neutron-tempest-plugin, the jobs were
configured to run only on relevant files changes. Drop this restriction
so we check that any change to the repo will not break a stadium test.

This is in line with current configuration for bgpvpn and proposed one
for dynamic-routing

Change-Id: I81dc79150f2a7e2b099acad2e9a021d360dff799
diff --git a/.zuul.yaml b/.zuul.yaml
index 011bfe5..060443d 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -845,8 +845,6 @@
         - sfc
       devstack_localrc:
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_sfc) | join(',') }}"
-    files:
-      - ^neutron_tempest_plugin/sfc/.*$
 
 - job:
     name: neutron-tempest-plugin-bgpvpn-bagpipe
@@ -891,8 +889,6 @@
         - fwaas_v2
       devstack_localrc:
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_fwaas) | join(',') }}"
-    files:
-      - ^neutron_tempest_plugin/fwaas/.*$
 
 - project-template:
     name: neutron-tempest-plugin-jobs