Remove faraday dependency

Author: sferik

lib/omniauth/strategies/oauth2.rb

@@ -3,7 +3,6 @@
 require 'securerandom'
 require 'socket'       # for SocketError
 require 'timeout'      # for Timeout::Error
-require 'faraday'      # for Faraday::Error::TimeoutError and Faraday::Error::ConnectionFailed
 
 module OmniAuth
   module Strategies
@@ -77,9 +76,9 @@ def callback_phase # rubocop:disable AbcSize, CyclomaticComplexity, MethodLength
         end
       rescue ::OAuth2::Error, CallbackError => e
         fail!(:invalid_credentials, e)
-      rescue ::Timeout::Error, ::Errno::ETIMEDOUT, Faraday::Error::TimeoutError => e
+      rescue ::Timeout::Error, ::Errno::ETIMEDOUT => e
         fail!(:timeout, e)
-      rescue ::SocketError, Faraday::Error::ConnectionFailed => e
+      rescue ::SocketError => e
         fail!(:failed_to_connect, e)
       end
 

omniauth-oauth2.gemspec

@@ -3,7 +3,6 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'omniauth-oauth2/version'
 
 Gem::Specification.new do |gem|
-  gem.add_dependency 'faraday',   ['>= 0.8', '< 0.10']
   gem.add_dependency 'oauth2',     '~> 1.0'
   gem.add_dependency 'omniauth',   '~> 1.2'