Revert "squash! TB4: Tor Browser's Firefox preference overrides."

This reverts commit 81d2d351.

browser/app/profile/000-tor-browser.js

@@ -169,8 +169,6 @@ pref("browser.cache.frecency_experiment", -1);
 pref("dom.use_components_shim", false);
 // Enable letterboxing
 pref("privacy.resistFingerprinting.letterboxing", true);
-// Enable FuzzyFox
-pref("privacy.fuzzyfox.enabled", true);
 
 // Third party stuff
 pref("privacy.firstparty.isolate", true); // Always enforce first party isolation