Remove redundant code (#109)

* remove unused code

* update changelog

Author: KazuCocoa

CHANGELOG.md

@@ -8,6 +8,7 @@ All notable changes to this project will be documented in this file.
 - Available packages over HTTP [#106](https://github.com/appium/ruby_lib_core/issues/106)
 
 ### Deprecations
+- Remove warning of camelCase capability for W3C format
 
 ## [1.8.1] - 2018-07-13
 ### Enhancements

lib/appium_lib_core/common/base/bridge.rb

@@ -122,8 +122,6 @@ def add_appium_prefix(capabilities)
 
           capabilities = capabilities.__send__(:capabilities) unless capabilities.is_a?(Hash)
 
-          warn_if_camel_case(capabilities)
-
           capabilities.each do |name, value|
             next if value.nil?
             next if value.is_a?(String) && value.empty?
@@ -139,14 +137,6 @@ def add_appium_prefix(capabilities)
 
         private
 
-        def warn_if_camel_case(caps)
-          warn_caps = caps.collect { |key, _value| key =~ /_([a-z])/ ? key : nil }.compact
-          return if warn_caps.empty?
-
-          warn_message = warn_caps.join(', ')
-          ::Appium::Logger.warn("Please define capability key names: #{warn_message} as camelCase for W3C Appium Server")
-        end
-
         def camel_case(str)
           str.gsub(/_([a-z])/) { Regexp.last_match(1).upcase }
         end