monado: Use cmake flag instead of patch

pkgs/applications/graphics/monado/default.nix

@@ -83,6 +83,7 @@ stdenv.mkDerivation {
     "-DXRT_OPENXR_INSTALL_ABSOLUTE_RUNTIME_PATH=ON"
     "-DXRT_HAVE_TRACY=ON"
     "-DXRT_FEATURE_TRACING=ON"
+    "-DXRT_HAVE_STEAM=ON"
   ];
 
   buildInputs = [
@@ -142,11 +143,6 @@ stdenv.mkDerivation {
     export XDG_CONFIG_DIRS=@out@/etc/xdg''${XDG_CONFIG_DIRS:+:''${XDG_CONFIG_DIRS}}
   '';
 
-  patches = [
-    # We don't have $HOME/.steam when building
-    ./force-enable-steamvr_lh.patch
-  ];
-
   passthru.tests = {
     basic-service = nixosTests.monado;
   };

pkgs/applications/graphics/monado/force-enable-steamvr_lh.patch

@@ -1,12 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 4308d73d..0081d536 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -219,6 +219,7 @@ option(BUILD_TESTING "Enable building of the test suite?" ON)
- if(EXISTS "$ENV{HOME}/.steam/root")
- 	set(XRT_HAVE_STEAM YES)
- endif()
-+set(XRT_HAVE_STEAM YES)
- 
- if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
- 	set(XRT_HAVE_INTERNAL_HID ON)