disabling MOZ_REQUIRE_SIGNING should be sufficient to allow unsigned addons without patching?

allow-unsigned-addons.patch

@@ -1,11 +0,0 @@
---- a/toolkit/moz.configure	2021-09-27 19:17:29.000000000 -0400
-+++ b/toolkit/moz.configure	2021-10-24 00:47:41.559674267 -0400
-@@ -1412,7 +1412,7 @@
- # ==============================================================
- @depends(milestone)
- def require_signing(milestone):
--    return milestone.is_release_or_beta and not milestone.is_esr
-+    return False
- 
- 
- option(

flake.nix

@@ -25,9 +25,6 @@
           # restriction.
           # https://github.com/mozilla/policy-templates/issues/484
           ./allow-searchengines-policy.patch
-          # Nix's wrapFirefox enables unsigned addons, but mainline
-          # Firefox has that force-locked.
-          ./allow-unsigned-addons.patch
         ];
       });
     };