Review: Remove s390x

Author: reneleonhardt

versions.json

@@ -150,17 +150,15 @@
       "arches": [
         "amd64",
         "arm64",
-        "ppc64el",
-        "s390x"
+        "ppc64el"
       ],
       "version": "18~beta1-1.pgdg120+1"
     },
     "bullseye": {
       "arches": [
         "amd64",
         "arm64",
-        "ppc64el",
-        "s390x"
+        "ppc64el"
       ],
       "version": "18~beta1-1.pgdg110+1"
     },