Delete in-tree support for NVIDIA GPUs.

This removes the alpha Accelerators feature gate which was deprecated in 1.10.
The alternative feature DevicePlugins went beta in 1.10.

pkg/apis/core/helper/helpers.go

@@ -172,14 +172,11 @@ func IsNativeResource(name core.ResourceName) bool {
 		strings.Contains(string(name), core.ResourceDefaultNamespacePrefix)
 }
 
-var overcommitBlacklist = sets.NewString(string(core.ResourceNvidiaGPU))
-
 // IsOvercommitAllowed returns true if the resource is in the default
-// namespace and not blacklisted.
+// namespace and is not hugepages.
 func IsOvercommitAllowed(name core.ResourceName) bool {
 	return IsNativeResource(name) &&
-		!IsHugePageResourceName(name) &&
-		!overcommitBlacklist.Has(string(name))
+		!IsHugePageResourceName(name)
 }
 
 var standardLimitRangeTypes = sets.NewString(

pkg/apis/core/helper/helpers_test.go

@@ -387,10 +387,6 @@ func TestIsOvercommitAllowed(t *testing.T) {
 			name:    core.ResourceMemory,
 			allowed: true,
 		},
-		{
-			name:    core.ResourceNvidiaGPU,
-			allowed: false,
-		},
 		{
 			name:    HugePageResourceName(resource.MustParse("2Mi")),
 			allowed: false,