diff --git a/configs/components/rubygem-base64.rb b/configs/components/rubygem-base64.rb
deleted file mode 100644
index 5f87eeb8e..000000000
--- a/configs/components/rubygem-base64.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-component 'rubygem-base64' do |pkg, settings, platform|
-  pkg.version '0.2.0'
-  pkg.md5sum 'fe02f4347a5846f79f4d4615edababd3'
-
-  instance_eval File.read('configs/components/_base-rubygem.rb')
-end
diff --git a/configs/components/rubygem-nkf.rb b/configs/components/rubygem-nkf.rb
deleted file mode 100644
index 5f721f361..000000000
--- a/configs/components/rubygem-nkf.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-component 'rubygem-nkf' do |pkg, settings, platform|
-  pkg.version '0.2.0'
-  pkg.md5sum '7a0af896fa45703c594cf0535096a8ed'
-
-  instance_eval File.read('configs/components/_base-rubygem.rb')
-end