Revert r31478.
In CRuby's test-all, skip is for something to be fixed. When some external library is missing, it should silently return; don't flood the test result with meaningless messages.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Revert r31478.
In CRuby's test-all, skip is for something to be fixed.
When some external library is missing, it should silently return;
don't flood the test result with meaningless messages.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e