ruby: drop versions 2.1 & 2.2

component/helloweb/buildout.cfg

@@ -70,7 +70,7 @@ scripts = helloweb=helloweb-python
 # rubygemsrecipe with fixed url and this way pinned rubygems version
 recipe  = rubygemsrecipe
 url     = https://rubygems.org/rubygems/rubygems-2.5.2.zip
-ruby-location = ${ruby2.1:location}
+ruby-location = ${ruby:location}
 ruby-executable = ${:ruby-location}/bin/ruby
 gems    = bundler==1.11.2
 

component/ruby/buildout.cfg

@@ -25,21 +25,10 @@ environment =
   PKG_CONFIG_PATH=${libyaml:location}/lib/
 
 
-[ruby2.1]
-<= ruby-common
-url = http://ftp.ruby-lang.org/pub/ruby/2.1/ruby-2.1.8.tar.xz
-md5sum = f18ed96bd1d5890f97a17d0d17aaefdd
-
-
-[ruby2.2]
-<= ruby-common
-url = http://ftp.ruby-lang.org/pub/ruby/2.2/ruby-2.2.2.tar.xz
-md5sum = dbce9b9d79d90f213ba8d448b0b6ed86
-
 [ruby2.3]
 <= ruby-common
 url = http://ftp.ruby-lang.org/pub/ruby/2.3/ruby-2.3.8.tar.xz
 md5sum = 927e1857f3dd5a1bdec26892dbae2a05
 
 [ruby]
-<= ruby2.2
+<= ruby2.3