don't need ubifs u-boot patch now

23.11 has upgraded to a newer u-boot that has ubifs by default
in the qemu-arm config

overlay.nix

@@ -170,11 +170,11 @@ extraPkgs // {
 
   pppBuild = prev.ppp;
 
-  qemu = let q = prev.qemu.overrideAttrs (o: {
+  qemuLim = let q = prev.qemu.overrideAttrs (o: {
     patches = o.patches ++ [
       ./pkgs/qemu/arm-image-friendly-load-addr.patch
     ];
-  }); in q.override { sdlSupport = false; };
+  }); in q.override { nixosTestRunner = true; sdlSupport = false; };
 
   rsyncSmall =
     let r = prev.rsync.overrideAttrs(o: {
@@ -209,9 +209,6 @@ extraPkgs // {
     defconfig = "qemu_arm_defconfig";
     extraMeta.platforms = ["armv7l-linux"];
     filesToInstall = ["u-boot.bin"];
-    # enable looking for boot files on ubifs. this is unused at
-    # present, but added in the expectation of a future test
-    extraPatches = [ ./pkgs/u-boot/0001-add-ubifs-to-boot-targets.patch ];
     extraConfig = ''
       CONFIG_CMD_UBI=y
       CONFIG_CMD_UBIFS=y

pkgs/run-liminix-vm/default.nix

@@ -1,5 +1,5 @@
 {
-  qemu
+  qemuLim
 , socat
 , writeShellScript
 , writeFennel
@@ -9,7 +9,7 @@
 , pkgsBuildBuild
 }: let
   run-liminix-vm = pkgsBuildBuild.writeFennel "run-liminix-vm" {
-    packages = [ qemu lua.pkgs.luaposix lua.pkgs.fennel ];
+    packages = [ qemuLim lua.pkgs.luaposix lua.pkgs.fennel ];
   } ./run-liminix-vm.fnl;
   connect = writeShellScript "connect-vm" ''
     export PATH="${lib.makeBinPath [socat]}:$PATH"