Clean up zuul files

This moves the irrelevant-files section from project.yaml to
legacy-virtualbmc-jobs.yaml. It adds more irrelevant files to
this list, and changes it so that requirements.yaml is now
relevant.

It removes two projects that are required projects in the
parent 'legacy-dsvm-base'.

The run, post-run, and timeout attributes were moved to the
bottom to be more consistent with how it is done in other
ironic-related projects.

Change-Id: Ib4a88d0589a0bfd85713918c7cdfe212c0e54645

zuul.d/legacy-virtualbmc-jobs.yaml

@@ -1,15 +1,21 @@
 - job:
     name: virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src
     parent: legacy-dsvm-base
-    run: playbooks/legacy/virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src/run.yaml
-    post-run: playbooks/legacy/virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src/post.yaml
-    timeout: 10800
+    irrelevant-files:
+      - ^.*\.rst$
+      - ^doc/.*$
+      - ^virtualbmc/tests/.*$
+      - ^setup.cfg$
+      - ^test-requirements.txt$
+      - ^tools/.*$
+      - ^tox.ini$
     required-projects:
-      - openstack-infra/devstack-gate
       - openstack/ironic
       - openstack/ironic-lib
       - openstack/ironic-python-agent
       - openstack/pyghmi
       - openstack/python-ironicclient
-      - openstack/tempest
       - openstack/virtualbmc
+    run: playbooks/legacy/virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src/run.yaml
+    post-run: playbooks/legacy/virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src/post.yaml
+    timeout: 10800

zuul.d/project.yaml

@@ -2,13 +2,7 @@
     name: openstack/virtualbmc
     check:
       jobs:
-        - virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src:
-            irrelevant-files:
-              - ^(test-|)requirements.txt$
-              - ^setup.cfg$
+        - virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src
     gate:
       jobs:
-        - virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src:
-            irrelevant-files:
-              - ^(test-|)requirements.txt$
-              - ^setup.cfg$
+        - virtualbmc-tempest-dsvm-ironic-pxe_ipmitool-src