1745927 - Remove debugger prefs that are no longer used

Status: NEW

(DevTools :: Debugger, task, P3)

Description

[Hubert Boma Manilla (:bomsy)]

There are prefs that might no longer be useful for various reasons. We confirm and clean them up.

• Feature prefs for features that true by default
  https://searchfox.org/mozilla-central/search?q=devtools.debugger.feature&path=
• Prefs used for persisting data before migrating to using the asyncStore
  e.g

pref("devtools.debugger.pending-breakpoints", "{}");
pref("devtools.debugger.tabs", "[]");

confirm the others.

• Debugger UI pref devtools.debugger.enabled
  https://searchfox.org/mozilla-central/search?q=devtools.debugger.enabled&path=&case=false&regexp=false

• Any others that can be cleaned up