remove rails_bigdecimal_fix with rails 5 bump

config/application.rb

@@ -1,4 +1,3 @@
-require File.expand_path('../rails_bigdecimal_fix', __FILE__)
 require 'rails'
 require File.expand_path('../boot', __FILE__)
 

config/boot.rb

@@ -9,8 +9,6 @@ GEMFILE_EXTENSIONS = [
 msfenv_real_pathname = Pathname.new(__FILE__).realpath
 root = msfenv_real_pathname.parent.parent
 
-require File.expand_path('../rails_bigdecimal_fix', __FILE__)
-
 unless ENV['BUNDLE_GEMFILE']
   require 'pathname'
 

config/rails_bigdecimal_fix.rb

@@ -1,11 +0,0 @@
-# Remove bigdecimal warning - start
-# https://github.com/ruby/bigdecimal/pull/115
-# https://github.com/rapid7/metasploit-framework/pull/11184#issuecomment-461971266
-# TODO: remove when upgrading from rails 4.x
-require 'bigdecimal'
-
-def BigDecimal.new(*args, **kwargs)
-  return BigDecimal(*args) if kwargs.empty?
-  BigDecimal(*args, **kwargs)
-end
-# Remove bigdecimal warning - end

spec/spec_helper.rb

@@ -4,8 +4,6 @@ require 'factory_bot'
 
 ENV['RAILS_ENV'] = 'test'
 
-require File.expand_path('../../config/rails_bigdecimal_fix', __FILE__)
-
 # @note must be before loading config/environment because railtie needs to be loaded before
 #   `Metasploit::Framework::Application.initialize!` is called.
 #