cuda-modules: use stdenv instead of backendStdenv for *Platform access

pkgs/development/cuda-modules/cuda-library-samples/extension.nix

@@ -1,9 +1,4 @@
-{
-  lib,
-  # NOTE: We would use backendStdenv to get the hostPlatform, but it's not available in the callPackage context
-  # we're using to call this file.
-  stdenv,
-}:
+{ lib, stdenv }:
 let
   inherit (stdenv) hostPlatform;
 

pkgs/development/cuda-modules/cuda-samples/extension.nix

@@ -1,8 +1,6 @@
 {
   cudaVersion,
   lib,
-  # NOTE: We would use backendStdenv to get the hostPlatform, but it's not available in the callPackage context
-  # we're using to call this file.
   stdenv,
 }:
 let

pkgs/development/cuda-modules/cuda-samples/generic.nix

@@ -11,6 +11,7 @@
   hash,
   lib,
   pkg-config,
+  stdenv,
 }:
 let
   inherit (lib) lists strings;
@@ -63,7 +64,7 @@ backendStdenv.mkDerivation (finalAttrs: {
   installPhase = ''
     runHook preInstall
 
-    install -Dm755 -t $out/bin bin/${backendStdenv.hostPlatform.parsed.cpu.name}/${backendStdenv.hostPlatform.parsed.kernel.name}/release/*
+    install -Dm755 -t $out/bin bin/${stdenv.hostPlatform.parsed.cpu.name}/${stdenv.hostPlatform.parsed.kernel.name}/release/*
 
     runHook postInstall
   '';

pkgs/development/cuda-modules/cutensor/extension.nix

@@ -17,8 +17,6 @@
   flags,
   lib,
   mkVersionedPackageName,
-  # NOTE: We would use backendStdenv to get the hostPlatform, but it's not available in the callPackage context
-  # we're using to call this file.
   stdenv,
 }:
 let

pkgs/development/cuda-modules/flags.nix

@@ -7,8 +7,6 @@
   cudaForwardCompat ? (config.cudaForwardCompat or true),
   lib,
   cudaVersion,
-  # NOTE: We cannot refer to backendStdenv as flags exists outside the fixed-point;
-  # otherwise, we would use that to get the hostPlatform.
   stdenv,
   # gpus :: List Gpu
   gpus,

pkgs/development/cuda-modules/generic-builders/manifest.nix

@@ -39,7 +39,7 @@ let
     sourceTypes
     ;
 
-  inherit (backendStdenv) hostPlatform;
+  inherit (stdenv) hostPlatform;
 
   # Get the redist architectures for which package provides distributables.
   # These are used by meta.platforms.

pkgs/development/cuda-modules/generic-builders/multiplex.nix

@@ -3,8 +3,6 @@
   lib,
   cudaVersion,
   flags,
-  # NOTE: We would use backendStdenv to get the hostPlatform, but it's not available in the callPackage context
-  # we're using to call this file (cudaPackages.callPackage).
   stdenv,
   # Expected to be passed by the caller
   mkVersionedPackageName,

pkgs/development/cuda-modules/tensorrt/fixup.nix

@@ -1,5 +1,4 @@
 {
-  backendStdenv,
   cudaVersion,
   final,
   lib,
@@ -7,6 +6,7 @@
   package,
   patchelf,
   requireFile,
+  stdenv,
   ...
 }:
 let
@@ -17,7 +17,7 @@ let
     strings
     versions
     ;
-  inherit (backendStdenv) hostPlatform;
+  inherit (stdenv) hostPlatform;
   # targetArch :: String
   targetArch = attrsets.attrByPath [ hostPlatform.system ] "unsupported" {
     x86_64-linux = "x86_64-linux-gnu";