remove repo blizoo.mk

Cengn builds periodically fail when an upstream rpm repo in anavailable.
By far the top offender is epel.blizoo.mk that seems to go offline
roughly monthly.

The only rpm that we currently use from that repo is
python-pyngus-2.2.1-1.el7.noarch.rpm, referenced from
rpms_centos3rdparties.lst.

However that rpm is eclipsed by the newer
python2-pyngus-2.2.4-1.el7.noarch.rpm which we reference from
rpms_centos.lst.

It is python2-pyngus-2.2.4-1.el7.noarch.rpm that is used in our ISO
build. Pyngus is not used in our docker images.

This update will remove python-pyngus-2.2.1-1.el7.noarch.rpm
from rpms_centos3rdparties.lst, and remove the repo ...
'yum.repos.d/StarlingX_3rd_epel_blizoo_mk.repo' as it will
no longer be supplying rpms that are both unique and needed.

Testing:
docker build --tag stx-builder --file Dockerfile .
build-pkgs
build-iso
build-stx-base
build-stx-images

Change-Id: I817dae97282474a0c9b56941e4b227b6ff82d9aa
Closes-Bug: 1831113
Signed-off-by: Scott Little <scott.little@windriver.com>

centos-mirror-tools/rpms_centos3rdparties.lst

@@ -105,7 +105,6 @@ python-ironic-inspector-client-2.1.0-1.el7.noarch.rpm
 python-ironic-lib-2.10.1-1.el7.noarch.rpm
 python-libguestfs-1.38.2-12.el7_6.1.x86_64.rpm
 python-libs-2.7.5-76.el7.x86_64.rpm
-python-pyngus-2.2.1-1.el7.noarch.rpm
 python-requests-mock-1.3.0-1.el7.noarch.rpm
 python-setuptools-22.0.5-1.el7.src.rpm
 python-tempest-17.2.0-4.el7.noarch.rpm

centos-mirror-tools/yum.repos.d/StarlingX_3rd_epel_blizoo_mk.repo

@@ -1,12 +0,0 @@
-#####
-# epel.blizoo.mk
-
-[Starlingx-epel.blizoo.mk_epel_7Server_x86_64]
-name=Starlingx-epel.blizoo.mk_epel_7Server_x86_64 - epel.blizoo.mk_epel_7Server_x86_64
-baseurl=http://epel.blizoo.mk/epel/7Server/x86_64
-enabled=1
-
-[Starlingx-epel.blizoo.mk_epel_7_SRPMS]
-name=Starlingx-epel.blizoo.mk_epel_7_SRPMS - epel.blizoo.mk_epel_7_SRPMS
-baseurl=http://epel.blizoo.mk/epel/7/SRPMS
-enabled=1