diff --git a/logstash-core/lib/logstash/patches/rubygems.rb b/logstash-core/lib/logstash/patches/rubygems.rb
deleted file mode 100644
index 0576424eb..000000000
--- a/logstash-core/lib/logstash/patches/rubygems.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# encoding: utf-8
-# monkey patch RubyGems to silence ffi warnings:
-#
-# WARN: Unresolved specs during Gem::Specification.reset:
-#       ffi (>= 0)
-# WARN: Clearing out unresolved specs.
-# Please report a bug if this causes problems.
-#
-# see https://github.com/elasticsearch/logstash/issues/2556 and https://github.com/rubygems/rubygems/issues/1070
-#
-# this code is from Rubygems v2.1.9 in JRuby 1.7.17. Per tickets this issue should be solved at JRuby >= 1.7.20.
-#
-# this method implementation works for Rubygems version 2.1.0 and up, verified up to 2.4.6
-if ::Gem::Version.new(::Gem::VERSION) >= ::Gem::Version.new("2.1.0") && ::Gem::Version.new(::Gem::VERSION) < ::Gem::Version.new("2.5.0")
-  class ::Gem::Specification
-    def self.reset
-      @@dirs = nil
-      ::Gem.pre_reset_hooks.each { |hook| hook.call }
-      @@all = nil
-      @@stubs = nil
-      _clear_load_cache
-      unresolved = unresolved_deps
-      unless unresolved.empty?
-        unless (unresolved.size == 1 && unresolved["ffi"])
-          w = "W" + "ARN"
-          warn "#{w}: Unresolved specs during Gem::Specification.reset:"
-          unresolved.values.each do |dep|
-            warn "      #{dep}"
-          end
-          warn "#{w}: Clearing out unresolved specs."
-          warn "Please report a bug if this causes problems."
-        end
-        unresolved.clear
-      end
-      ::Gem.post_reset_hooks.each { |hook| hook.call }
-    end
-  end
-end