Stop project gating before retirement

We didn't to any release and don't use these projects for the years:
* xstatic-angular-ui-router
* xstatic-vis


The retirement is announced in the openstack-discuss mailing list [1].

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-April/004499.html

Change-Id: I7fa241d88a8b1e475489099871a3477d17c9f24f

zuul.d/projects.yaml

@@ -9146,7 +9146,6 @@
     name: openstack/xstatic-angular-ui-router
     templates:
       - noop-jobs
-      - publish-to-pypi
 
 - project:
     name: openstack/xstatic-angular-uuid
@@ -9290,7 +9289,6 @@
     name: openstack/xstatic-vis
     templates:
       - noop-jobs
-      - publish-to-pypi
 
 - project:
     name: openstack/yaql