Remove rubygem-mongo and rubygem-bson.

Remove rubygem-mongo as the mongodb-server is no longer shipped in
Fedora.
Drop rubygem-bson as that was a dependency of rubygem-mongo.

Relevant commit: https://src.fedoraproject.org/rpms/rubygem-mongo/c/084949d10c26e9e5301f4da17c9817aa927647d6?branch=rawhide

ruby.yaml

@@ -49,18 +49,6 @@ data:
                     A Ruby interface to the PostgreSQL RDBMS
                 buildorder: 102
                 ref: rawhide
-            rubygem-bson:
-                # From rubygem-bson.spec Summary
-                rationale: >-
-                    Ruby Implementation of the BSON specification
-                buildorder: 102
-                ref: rawhide
-            rubygem-mongo:
-                # From rubygem-mongo.spec Summary
-                rationale: >-
-                    Ruby driver for MongoDB
-                buildorder: 103
-                ref: rawhide
     buildopts:
         rpms:
             macros: |
@@ -101,10 +89,6 @@ data:
             - rubygem-mysql2
             # From rubygem-pg.spec
             - rubygem-pg
-            # From rubygem-bson.spec
-            - rubygem-bson
-            # From rubygem-mongo.spec
-            - rubygem-mongo
     # Add profiles/default as a temporary workflow,
     # because of a issue for omitted profiles element.
     profiles: