Get rid of RCov

tasks/rspec.rake

@@ -1,29 +1,9 @@
 begin
   require "rspec/core/rake_task"
-
-  begin
-    require 'rcov'
-  rescue LoadError
-    warn "RCov gem is required, please install it (gem install rcov)."
-  end
-
-rescue LoadError
+rescue LoadError => e
   warn "RSpec gem is required, please install it (gem install rspec)."
 end
 
 if defined?(RSpec::Core::RakeTask)
   RSpec::Core::RakeTask.new(:spec)
-
-  if defined?(Rcov)
-    CLOBBER.include('coverage')
-
-    namespace :spec do
-      desc "Run all specs in spec directory with RCov"
-      RSpec::Core::RakeTask.new(:rcov) do |t|
-        t.rcov = true
-        t.rcov_opts   = ["--exclude", "spec/*,features/*,gems/*"]
-      end
-    end
-  end
 end
-