Delete "Requires: rubygem(cookiejar)".

Bug#1561487 regarding this issue was fixed.

rubygem-em-http-request.spec

@@ -3,7 +3,7 @@
 
 Name: rubygem-%{gem_name}
 Version: 1.1.5
-Release: 3%{?dist}
+Release: 4%{?dist}
 Summary: EventMachine based, async HTTP Request client
 License: MIT
 URL: http://github.com/igrigorik/em-http-request
@@ -20,10 +20,6 @@ BuildRequires: rubygem(http_parser.rb)
 BuildRequires: rubygem(rack)
 BuildRequires: %{_bindir}/ping
 BuildRequires: rubygem(rspec)
-# This needs to be required, dependency generator
-# doesn't handle correctly excluded version specification:
-# https://bugzilla.redhat.com/show_bug.cgi?id=1561487
-Requires: rubygem(cookiejar)
 
 BuildArch: noarch
 
@@ -103,6 +99,11 @@ popd
 %{gem_instdir}/spec
 
 %changelog
+* Sat Jul 14 2018 Jaroslav Prokop <jar.prokop@volny.cz> - 1.1.5-4
+- Delete "Requires: rubygem(cookiejar)".
+
+  Bug#1561487 regarding this issue was fixed.
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.1.5-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild