Bug 1592692 - Enable Resource blocking in all channels r=Harald

Differential Revision: https://phabricator.services.mozilla.com/D52335

--HG--
extra : moz-landing-system : lando

browser/app/profile/firefox.js

@@ -2135,12 +2135,7 @@ pref("devtools.serviceWorkers.testing.enabled", false);
 pref("devtools.netmonitor.enabled", true);
 
 pref("devtools.netmonitor.features.search", true);
-
-#if defined(NIGHTLY_BUILD) || defined(MOZ_DEV_EDITION)
-  pref("devtools.netmonitor.features.requestBlocking", true);
-#else
-  pref("devtools.netmonitor.features.requestBlocking", false);
-#endif
+pref("devtools.netmonitor.features.requestBlocking", true);
 
 // Enable the Application panel
 pref("devtools.application.enabled", false);