cross: avoid building samba

i was already trying to avoid it, just missed some spots

overlays/cross.nix

@@ -1840,6 +1840,10 @@ in {
     };
   });
 
+  # waf-setup-hook: python3-aarch64-unknown-linux-gnu-3.11.6/bin/python: cannot execute binary file: Exec format error
+  # NOTE: not enough to fix build. better to just ensure we don't need samba
+  # samba = needsBinfmt prev.samba;
+
   # samba = prev.samba.overrideAttrs (_upstream: {
   #   # we get "cannot find C preprocessor: aarch64-unknown-linux-gnu-cpp", but ONLY when building with the ccache stdenv.
   #   # this solves that, but `CPP` must be a *single* path -- not an expression.

overlays/preferences.nix

@@ -6,10 +6,6 @@
     evolution-data-server = gsuper.evolution-data-server.override {
       # OAuth depends on webkitgtk_4_1: old, forces an annoying recompilation
       enableOAuth2 = false;
-      gnome-online-accounts = gnome-online-accounts.override {
-        # avoid webkitgtk_4_1 build
-        enableBackend = false;
-      };
     };
     # gnome-shell = gsuper.gnome-shell.override {
     #   evolution-data-server-gtk4 = evolution-data-server-gtk4.override {
@@ -18,23 +14,19 @@
     #   };
     # };
   });
+  gnome-online-accounts = super.gnome-online-accounts.override {
+    # disables the upstream "goabackend" feature -- presumably "Gnome Online Accounts Backend"
+    # frees us from webkit_4_1, in turn.
+    enableBackend = false;
+    gvfs = gvfs.override {
+      # saves 20 minutes of build time and cross issues, for unused feature
+      samba = null;
+    };
+  };
 
   phog = super.phog.override {
     # disable squeekboard because it takes 20 minutes to compile when emulated
     squeekboard = null;
-    gnome.gnome-shell = gnome.gnome-shell.override {
-      evolution-data-server-gtk4 = evolution-data-server-gtk4.override {
-        gnome-online-accounts = gnome-online-accounts.override {
-          # disables the upstream "goabackend" feature -- presumably "Gnome Online Accounts Backend"
-          # frees us from webkit_4_1, in turn.
-          enableBackend = false;
-          gvfs = gvfs.override {
-            # saves 20 minutes of build time and cross issues, for unused feature
-            samba = null;
-          };
-        };
-      };
-    };
   };
 
   pipewire = super.pipewire.override {