Nix: remove libdrm override

Nixpkgs update has the new version.

nix/wlroots.nix

@@ -1,33 +1,22 @@
 {
-  fetchurl,
   version,
   src,
   wlroots,
   hwdata,
   libdisplay-info,
   libliftoff,
-  libdrm,
   enableXWayland ? true,
 }:
-let
-  # NOTE: remove after https://github.com/NixOS/nixpkgs/pull/271096 reaches nixos-unstable
-  libdrm_2_4_118 = libdrm.overrideAttrs(old: rec {
-    version = "2.4.118";
-    src = fetchurl {
-      url = "https://dri.freedesktop.org/${old.pname}/${old.pname}-${version}.tar.xz";
-      hash = "sha256-p3e9hfK1/JxX+IbIIFgwBXgxfK/bx30Kdp1+mpVnq4g=";
-    };
-  });
-in
 wlroots.overrideAttrs (old: {
   inherit version src enableXWayland;
 
   pname = "${old.pname}-hyprland";
 
-  # HACK: libdrm_2_4_118 is placed at the head of list to take precedence over libdrm in `old.buildInputs`
-  buildInputs = [libdrm_2_4_118] ++ old.buildInputs ++ [hwdata libliftoff libdisplay-info];
-
-  NIX_CFLAGS_COMPILE = toString [
-    "-Wno-error=maybe-uninitialized"
-  ];
+  buildInputs =
+    old.buildInputs
+    ++ [
+      hwdata
+      libliftoff
+      libdisplay-info
+    ];
 })