Revert "devices.pc: fix ollama rocm gpu support"

This reverts commit af3750fa8b.

devices/pc/default.nix

@@ -115,6 +115,5 @@ inputs:
     '';
     # 解决有时蓝牙不能使用的问题
     boot.kernelParams = [ "mt7925e.disable_aspm=1" ];
-    services.ollama = { environmentVariables = { HCC_AMDGPU_TARGET = "gfx1151"; OLLAMA_DEBUG = "2"; }; rocmOverrideGfx = "11.5.1"; };
   };
 }

flake/lib/buildNixpkgsConfig/default.nix

@@ -73,7 +73,6 @@ in platformConfig //
         google-chrome = prev.google-chrome.override (prev:
           { commandLineArgs = prev.commandLineArgs or "" + " --disable-features=GlobalShortcutsPortal"; });
         xray = prev.xray.overrideAttrs (prev: { patches = prev.patches or [] ++ [ ./xray.patch ]; });
-        ollama = prev.ollama.overrideAttrs (prev: { patches = prev.patches or [] ++ [ ./ollama.patch ]; });
       }
       // (
         let

flake/lib/buildNixpkgsConfig/ollama.patch

@@ -1,20 +0,0 @@
---- a/discover/runner.go
-+++ b/discover/runner.go
-@@ -301,7 +301,7 @@ func GPUDevices(ctx context.Context, runners []ml.FilteredRunnerDiscovery) []ml.
- 
- 			// Typical refresh on existing runner is ~500ms but allow longer if the system
- 			// is under stress before giving up and using stale data.
--			ctx, cancel := context.WithTimeout(ctx, 3*time.Second)
-+			ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
- 			defer cancel()
- 			start := time.Now()
- 			updatedDevices := runner.GetDeviceInfos(ctx)
-@@ -325,7 +325,7 @@ func GPUDevices(ctx context.Context, runners []ml.FilteredRunnerDiscovery) []ml.
- 
- 			// Bootstrapping may take longer in some cases (AMD windows), but we
- 			// would rather use stale free data to get the model running sooner
--			ctx, cancel := context.WithTimeout(ctx, 3*time.Second)
-+			ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
- 			defer cancel()
- 
- 			// Apply any dev filters to avoid re-discovering unsupported devices, and get IDs correct