Fix CI failure

Error: unrecognized cop or department RSpec/NestedGroups found in .rubocop.yml
unrecognized cop or department RSpec/MessageSpies found in .rubocop.yml

Exited with code exit status 2

Author: kjriga

.rubocop.yml

@@ -3,9 +3,3 @@ require:
 
 Layout/LineLength:
   Enabled: false
-
-RSpec/NestedGroups:
-  Max: 4
-
-RSpec/MessageSpies:
-  Enabled: false