* test/net/http/test_http.rb (TestNetHTTP_v1_2#test_get,
  TestNetHTTP_v1_2_chunked#test_get): shoudn't check
  HttpResponse#decode_content if Zlib is not available.
  ko1 complained via IRC.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e