[ruby/net-http] Do not require stringio

It is not used in net/http library code since commit 15ccd0118c13 (r36473 in ruby svn trunk, 2012). require's in test suite are also cleaned up. ruby/net-http@996d18a43f
ruby · May 6, 2021 · 364044e · 364044e
1 parent 965719f
commit 364044e
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diff --git a/lib/net/http.rb b/lib/net/http.rb
@@ -393,7 +393,6 @@ class HTTP < Protocol
     HTTPVersion = '1.1'
     begin
       require 'zlib'
-      require 'stringio'  #for our purposes (unpacking gzip) lump these together
       HAVE_ZLIB=true
     rescue LoadError
       HAVE_ZLIB=false

diff --git a/test/net/http/test_http_request.rb b/test/net/http/test_http_request.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: false
 require 'net/http'
 require 'test/unit'
-require 'stringio'
 
 class HTTPRequestTest < Test::Unit::TestCase