Remove pry-debugger and extraneous local var

Gemfile

@@ -6,4 +6,3 @@ gem 'jruby-openssl', :platform => :jruby
 gem 'activerecord-jdbcsqlite3-adapter', :platform => :jruby
 
 gem 'pry', :platform => :ruby
-gem 'pry-debugger', :platform => :ruby

test/helper.rb

@@ -26,7 +26,7 @@ puts "Testing against version #{ActiveRecord::VERSION::STRING}"
 
 begin
   require 'ruby-debug'
-rescue LoadError => e
+rescue LoadError
   puts "debugger disabled"
 end