Cleanup Gemfile and gemspec

Gemfile

@@ -2,11 +2,3 @@ source 'http://rubygems.org'
 
 # Specify your gem's dependencies in omniauth-msunet.gemspec
 gemspec
-
-group :development, :test do
-  gem 'guard'
-  gem 'guard-rspec'
-  gem 'guard-bundler'
-  gem 'rb-fsevent'
-  gem 'growl'
-end

omniauth-msunet.gemspec

@@ -19,8 +19,5 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'omniauth', '~> 1.1'
   gem.add_dependency 'omniauth-oauth2', '~> 1.1'
   gem.add_dependency 'multi_json', '~> 1.7'
-  gem.add_development_dependency 'rspec', '~> 2.7'
-  gem.add_development_dependency 'rack-test'
-  gem.add_development_dependency 'simplecov'
-  gem.add_development_dependency 'webmock'
+  gem.add_development_dependency 'rspec', '~> 3.4'
 end