Drop support for ruby 2.4 from ruby/spec

3 files changed, 3 insertions, 17 deletions

diff --git a/spec/mspec/README.md b/spec/mspec/README.md
index e6fe44c6a2..86ee369e46 100644
--- a/spec/mspec/README.md
+++ b/spec/mspec/README.md
@@ -38,7 +38,7 @@ specs in a manner compatible with multiple Ruby implementations.
 
 ## Requirements
 
-MSpec requires Ruby 2.4 or more recent.
+MSpec requires Ruby 2.5 or more recent.
 
 ## Bundler
 
diff --git a/spec/mspec/lib/mspec/utils/script.rb b/spec/mspec/lib/mspec/utils/script.rb
index ec841db2e7..e8f581ef06 100644
--- a/spec/mspec/lib/mspec/utils/script.rb
+++ b/spec/mspec/lib/mspec/utils/script.rb
@@ -39,8 +39,8 @@ class MSpecScript
   end
 
   def initialize
-    ruby_version_is ""..."2.4" do
-      abort "MSpec needs Ruby 2.4 or more recent"
+    ruby_version_is ""..."2.5" do
+      abort "MSpec needs Ruby 2.5 or more recent"
     end
 
     config[:formatter] = nil
diff --git a/spec/mspec/lib/mspec/utils/warnings.rb b/spec/mspec/lib/mspec/utils/warnings.rb
index fa05c8c677..01fca00b8d 100644
--- a/spec/mspec/lib/mspec/utils/warnings.rb
+++ b/spec/mspec/lib/mspec/utils/warnings.rb
@@ -1,20 +1,6 @@
 require 'mspec/guards/version'
 
 if RUBY_ENGINE == "ruby"
-  ruby_version_is "2.4"..."2.5" do
-    # Kernel#warn does not delegate to Warning.warn in 2.4
-    module Kernel
-      remove_method :warn
-      def warn(*messages)
-        return if $VERBOSE == nil or messages.empty?
-        msg = messages.join("\n")
-        msg += "\n" unless msg.end_with?("\n")
-        Warning.warn(msg)
-      end
-      private :warn
-    end
-  end
-
   def Warning.warn(message)
     # Suppress any warning inside the method to prevent recursion
     verbose = $VERBOSE