fixup! Bug 40562: Added Tor Browser preferences to 000-tor-browser.js

Bug 41600 - Remove extensions.torbutton.display_circuit since it will no
longer be used.

It also could not work as intended before because after disabling and
re-enabling, all the circuits and browser credentials that were
established whilst it was switched off would have been lost and were not
recovered.

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

@@ -53,9 +53,6 @@ pref("network.http.connection-retry-timeout", 0);
 pref("extensions.torbutton.loglevel", 4);
 pref("extensions.torbutton.logmethod", 1); // 0=stdout, 1=errorconsole, 2=debuglog
 
-// Display prefs
-pref("extensions.torbutton.display_circuit", true);
-
 // Tor check and proxy prefs
 pref("extensions.torbutton.test_enabled", true);
 pref("extensions.torbutton.test_url", "https://check.torproject.org/?TorButton=true");