Rakefile in mongoid-history-0.4.7 vs Rakefile in mongoid-history-0.5.0

@@ -11,10 +11,9 @@
 
 require 'rspec/core'
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.pattern = FileList['spec/**/*_spec.rb']
-  spec.rspec_opts = '--color --format progress'
 end
 
 require 'rubocop/rake_task'
 RuboCop::RakeTask.new(:rubocop)