* test/rinda/test_rinda.rb: removed useless assignment variables.
* test/rss/rss-assertions.rb: ditto.
* test/rss/test_maker_itunes.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e