Land rapid7#8638, remove ruby refinement for Rubinious support

Author: Brent Cook

Gemfile.lock

@@ -182,7 +182,7 @@ GEM
     metasploit-aggregator (0.2.1)
       grpc
       rex-arch
-    metasploit-concern (2.0.4)
+    metasploit-concern (2.0.5)
       activemodel (~> 4.2.6)
       activesupport (~> 4.2.6)
       railties (~> 4.2.6)