Always use the @saved_trap to check the previous trap in Signal.trap specs
Always use the @saved_trap to check the previous trap in Signal.trap specs

* Remove unused code in the before(:each) trap.

nobu/rubyspec,eregon/rubyspec,ruby/spec,nobu/rubyspec,ruby/spec,nobu/rubyspec,eregon/rubyspec,ruby/spec,eregon/rubyspec