Remove ScheduleMetadata, which must be unused

lib/perfectsched/backend/rdb_compat.rb

@@ -98,7 +98,7 @@ def get_schedule_metadata(key, options={})
             raise NotFoundError, "schedule key=#{key} does not exist"
           end
           attributes = create_attributes(row)
-          return ScheduleMetadata.new(@client, key, attributes)
+          return ScheduleWithMetadata.new(@client, key, attributes)
         }
       end
 

lib/perfectsched/schedule_metadata.rb

@@ -57,24 +57,4 @@ def message
       @attributes[:message]
     end
   end
-
-  class ScheduleMetadata
-    include Model
-
-    def initialize(client, key, attributes)
-      super(client)
-      @key = key
-    end
-
-    def schedule
-      Schedule.new(@client, @key)
-    end
-
-    def inspect
-      "#<#{self.class} @key=#{@key.inspect} @attributes=#{@attributes.inspect}>"
-    end
-
-    include ScheduleMetadataAccessors
-  end
-
 end

spec/rdb_compat_backend_spec.rb

@@ -85,7 +85,7 @@
       db.add('key', 'test', '* * * * *', 0, 'Asia/Tokyo', {}, now, now, {})
     end
     it 'fetches a metadata' do
-      expect(db.get_schedule_metadata('key')).to be_an_instance_of(ScheduleMetadata)
+      expect(db.get_schedule_metadata('key')).to be_an_instance_of(ScheduleWithMetadata)
     end
     it 'raises error if non exist key' do
       expect{db.get_schedule_metadata('nonexistent')}.to raise_error(NotFoundError)