umu-starcitizen.py: Remove unneeded environment variables, and config…

…ure patched libcuda for NVIDIA

This expands #132 by implementing the patch that was mentioned, and integrates that into the protonfix.

gamefixes-umu/umu-starcitizen.py

@@ -8,11 +8,9 @@ def main() -> None:
     # eac workaround
     util.set_environment('EOS_USE_ANTICHEATCLIENTNULL', '1')
 
-    # needed for nvidia vulkan
-    util.set_environment('WINE_HIDE_NVIDIA_GPU', '1')
+    # patch libcuda to workaround crashes related to DLSS
+    # See: https://github.com/jp7677/dxvk-nvapi/issues/174#issuecomment-2227462795
+    util.patch_libcuda()
 
-    # needed for amd vulkan
-    util.set_environment('dual_color_blend_by_location', 'true')
-
-    # allow the RSI Launcher to auto-update itself
+    # RSI Launcher depends on powershell
     util.protontricks('powershell')