haskellPackages.matterhorn: remove out of date scope overrides

pkgs/development/haskell-modules/configuration-common.nix

@@ -334,15 +334,7 @@ self: super: {
   matplotlib = dontCheck super.matplotlib;
 
   # https://github.com/matterhorn-chat/matterhorn/issues/679 they do not want to be on stackage
-  matterhorn = doJailbreak (super.matterhorn.overrideScope (self: super: {
-    brick = self.brick_0_64_2;
-    # Doesn't support aeson 2.0
-    # https://github.com/matterhorn-chat/matterhorn/issues/759
-    aeson = self.aeson_1_5_6_0;
-  }));
-  mattermost-api = super.mattermost-api.override {
-    aeson = self.aeson_1_5_6_0;
-  };
+  matterhorn = doJailbreak super.matterhorn;
 
   memcache = dontCheck super.memcache;
   metrics = dontCheck super.metrics;