Bug 550894 - unreachable code in nsPluginHost::PostURL. r=josh

modules/plugin/base/src/nsPluginHost.cpp

@@ -1895,16 +1895,12 @@ NS_IMETHODIMP nsPluginHost::PostURL(nsISupports* pluginInst,
     nsCOMPtr<nsIPluginInstanceOwner> owner;
     rv = instance->GetOwner(getter_AddRefs(owner));
     if (owner) {
-      if (!target) {
-        target = "_self";
-      } else {
       if ((0 == PL_strcmp(target, "newwindow")) ||
           (0 == PL_strcmp(target, "_new"))) {
         target = "_blank";
       } else if (0 == PL_strcmp(target, "_current")) {
         target = "_self";
       }
-      }
       rv = owner->GetURL(url, target, postStream,
                          (void*)postHeaders, postHeadersLength);
     }