Temporarily disable failing opensuse test jobs.

shippable.yml

@@ -31,8 +31,6 @@ matrix:
     - env: TEST=linux/centos7/1
     - env: TEST=linux/fedora24/1
     - env: TEST=linux/fedora25/1
-    - env: TEST=linux/opensuse42.2/1
-    - env: TEST=linux/opensuse42.3/1
     - env: TEST=linux/ubuntu1404/1
     - env: TEST=linux/ubuntu1604/1
     - env: TEST=linux/ubuntu1604py3/1
@@ -41,8 +39,6 @@ matrix:
     - env: TEST=linux/centos7/2
     - env: TEST=linux/fedora24/2
     - env: TEST=linux/fedora25/2
-    - env: TEST=linux/opensuse42.2/2
-    - env: TEST=linux/opensuse42.3/2
     - env: TEST=linux/ubuntu1404/2
     - env: TEST=linux/ubuntu1604/2
     - env: TEST=linux/ubuntu1604py3/2