Remove support for Faraday 1.x.

Author: shashankmehra

lib/rabbitmq/http/client.rb

@@ -450,11 +450,7 @@ def initialize_connection(endpoint, options = {})
         adapter = options.delete(:adapter) || Faraday.default_adapter
 
         @connection = Faraday.new(options) do |conn|
-          if Gem::Version.new(Faraday::VERSION) < Gem::Version.new("2.0")
-            conn.request :basic_auth, user, password
-          else
-            conn.request :authorization, :basic, user, password
-          end
+          conn.request :authorization, :basic, user, password
 
           conn.use        Faraday::FollowRedirects::Middleware, :limit => 3
           conn.use        Faraday::Response::RaiseError

rabbitmq_http_api_client.gemspec

@@ -21,6 +21,6 @@ Gem::Specification.new do |gem|
   gem.add_dependency    'addressable', '~> 2.7'
   gem.add_dependency    'hashie', '~> 4.1'
   gem.add_dependency    'multi_json', '~> 1.15'
-  gem.add_dependency    'faraday', '>= 1.3', '< 3'
+  gem.add_dependency    'faraday', '~> 2.0'
   gem.add_dependency    'faraday-follow_redirects', '~> 0.3'
 end