Revert "Fix using Steam's uncompleted translations"

The "solution" was just causing achievement progress for games
without leaderboards for users with a non-english language to not
be detected at all.

See IsThereAnyDeal@082acfc#commitcomment-38668969

This reverts commit 082acfc.

js/content/common.js

@@ -1109,6 +1109,11 @@ let Stats = (function() {
 
         achNode.style.whiteSpace = "nowrap";
 
+        if (!achNode.querySelector("img")) {
+            // The size of the achievement bars for games without leaderboards/other stats is fine, return
+            return achNode.innerHTML;
+        }
+
         let stats = achNode.innerHTML.match(/(\d+) of (\d+) \((\d{1,3})%\)/);
 
         // 1 full match, 3 group matches