Remove unnecessary workaround

Author: basil

src/main/java/org/jenkinsci/plugins/gitserver/HttpGitRepository.java

@@ -151,8 +151,6 @@ public void doDynamic(StaplerRequest req, StaplerResponse rsp) throws IOExceptio
         if (realRequest==null)
             realRequest = req;
 
-        realRequest = new Jenkins2521Workaround(realRequest);
-
         /*
             GitServlet uses getPathInfo() to determine the current request, whereas in Stapler's sense it should be using
             getRestOfPath().