linuxPackages.nvidia_x11.open: don't include date for reproducibility

[katexochen]

date string was included in debug info, making the build non-reproducible: https://github.com/NVIDIA/open-gpu-kernel-modules/blob/9d0b0414a5304c3679c5db9d44d2afba8e58cc1b/utils.mk#L552

│ │ │ │ │ │ │   --- /nix/store/y4lkv451s2dn0m0088i8kfrfvi7d2sfl-nvidia-open-6.12.11-550.142/lib/modules/6.12.11-gnu/kernel/drivers/video/nvidia.ko.xz
│ │ │ │ │ │ ├── +++ /nix/store/y4lkv451s2dn0m0088i8kfrfvi7d2sfl-nvidia-open-6.12.11-550.142.check/lib/modules/6.12.11-gnu/kernel/drivers/video/nvidia.ko.xz
│ │ │ │ │ │ │ ├── nvidia.ko
│ │ │ │ │ │ │ │┄ File has been modified after NT_GNU_BUILD_ID has been applied.
│ │ │ │ │ │ │ │ ├── readelf --wide --notes {}
│ │ │ │ │ │ │ │ │ @@ -1,13 +1,13 @@
│ │ │ │ │ │ │ │ │  
│ │ │ │ │ │ │ │ │  Displaying notes found in: .note.gnu.property
│ │ │ │ │ │ │ │ │    Owner                Data size     Description
│ │ │ │ │ │ │ │ │    GNU                  0x00000030    NT_GNU_PROPERTY_TYPE_0        Properties: x86 feature: IBT, x86 feature used: x86, x86 ISA used: x86-64-baseline
│ │ │ │ │ │ │ │ │  
│ │ │ │ │ │ │ │ │  Displaying notes found in: .note.gnu.build-id
│ │ │ │ │ │ │ │ │    Owner                Data size     Description
│ │ │ │ │ │ │ │ │ -  GNU                  0x00000014    NT_GNU_BUILD_ID (unique build ID bitstring)         Build ID: aa37d42114b89f7dfc33253d732d12291ca935eb
│ │ │ │ │ │ │ │ │ +  GNU                  0x00000014    NT_GNU_BUILD_ID (unique build ID bitstring)         Build ID: 6dea79d218f42675ec3d96a255285387d7597a6d
│ │ │ │ │ │ │ │ │  
│ │ │ │ │ │ │ │ │  Displaying notes found in: .note.Linux
│ │ │ │ │ │ │ │ │    Owner                Data size     Description
│ │ │ │ │ │ │ │ │    Linux                0x00000004    func       description data: 00 00 00 00 
│ │ │ │ │ │ │ │ │    Linux                0x00000001    OPEN       description data: 00
│ │ │ │ │ │ │ │ ├── strings --all --bytes=8 {}
│ │ │ │ │ │ │ │ │ @@ -24187,15 +24187,15 @@
│ │ │ │ │ │ │ │ │  **** Bad metadata.  Lost %lld entries from %s ****
│ │ │ │ │ │ │ │ │  Assertion failed: %s (0x%08X) returned from 
│ │ │ │ │ │ │ │ │  Check failed: %s (0x%08X) returned from 
│ │ │ │ │ │ │ │ │  ../common/uproc/os/libos-v3.1.0/lib/liblogdecode.c
│ │ │ │ │ │ │ │ │  (pLog->hNvLogNoWrap != 0) && (pNvLogBuffer != NULL)
│ │ │ │ │ │ │ │ │  (pLog->hNvLogWrap != 0) && (pNvLogBuffer != NULL)
│ │ │ │ │ │ │ │ │  0123456789ABCDEF
│ │ │ │ │ │ │ │ │ -nvidia id: NVIDIA UNIX Open Kernel Module for x86_64  550.142  Release Build  (nixbld@)  Sun Jan 26 00:46:12 UTC 2025
│ │ │ │ │ │ │ │ │ +nvidia id: NVIDIA UNIX Open Kernel Module for x86_64  550.142  Release Build  (nixbld@)  Mon Jan 27 14:42:33 UTC 2025

This patch sets an empty string as date instead.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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