Partial backout of bug 1329262 for breaking ss jobs (bug 1332821).

MozReview-Commit-ID: 2nSaRiQJvwL

--HG--
extra : rebase_source : bdc94b5336859acab92c9df994cc830d319a35e9

browser/tools/mozscreenshots/mozscreenshots/extension/configurations/LightweightThemes.jsm

@@ -71,17 +71,5 @@ this.LightweightThemes = {
         });
       },
     },
-
-    compactLight: {
-      applyConfig: Task.async(() => {
-        LightweightThemeManager.currentTheme = LightweightThemeManager.getUsedTheme("firefox-compact-light@mozilla.org");
-      }),
-    },
-
-    compactDark: {
-      applyConfig: Task.async(() => {
-        LightweightThemeManager.currentTheme = LightweightThemeManager.getUsedTheme("firefox-compact-dark@mozilla.org");
-      }),
-    },
   },
 };