Remove an incorrect unit test.

spec/unit/config_spec.rb

@@ -23,10 +23,6 @@ module Pod
         @sut.repos_dir.should == Pathname.new("~/.cocoapods/repos").expand_path
       end
 
-      it "returns the path to the deprecated spec-repos dir" do
-        @sut.old_repos_dir.should == Pathname.new("~/.cocoapods").expand_path
-      end
-
       it "allows to specify whether the aggressive cache should be used with an environment variable" do
         @sut.aggressive_cache = false
         ENV['CP_AGGRESSIVE_CACHE'] = 'TRUE'