DRA: remove "sharable" from claim allocation result

Now all claims are shareable up to the limit imposed by the size of the
"reserverFor" array.

This is one of the agreed simplifications for 1.31.

pkg/scheduler/framework/plugins/dynamicresources/dynamicresources_test.go

@@ -105,10 +105,6 @@ var (
 				UID(podUID).
 				PodResourceClaims(v1.PodResourceClaim{Name: resourceName, ResourceClaimName: &claimName}).
 				Obj()
-	otherPodWithClaimName = st.MakePod().Name(podName).Namespace(namespace).
-				UID(podUID + "-II").
-				PodResourceClaims(v1.PodResourceClaim{Name: resourceName, ResourceClaimName: &claimName}).
-				Obj()
 	podWithClaimTemplate = st.MakePod().Name(podName).Namespace(namespace).
 				UID(podUID).
 				PodResourceClaims(v1.PodResourceClaim{Name: resourceName, ResourceClaimTemplateName: &claimName}).
@@ -134,7 +130,6 @@ var (
 
 	claimParameters = st.MakeClaimParameters().Name(claimName).Namespace(namespace).
 			NamedResourcesRequests("some-driver", "true").
-			Shareable(true).
 			GeneratedFrom(&resourceapi.ResourceClaimParametersReference{
 			Name:     claimName,
 			Kind:     "ResourceClaimParameters",
@@ -143,7 +138,6 @@ var (
 		Obj()
 	claimParametersOtherNamespace = st.MakeClaimParameters().Name(claimName).Namespace(namespace+"-2").
 					NamedResourcesRequests("some-driver", "true").
-					Shareable(true).
 					GeneratedFrom(&resourceapi.ResourceClaimParametersReference{
 			Name:     claimName,
 			Kind:     "ResourceClaimParameters",
@@ -946,22 +940,6 @@ func TestPlugin(t *testing.T) {
 				},
 			},
 		},
-		"in-use-by-other": {
-			nodes:       []*v1.Node{},
-			pod:         otherPodWithClaimName,
-			claims:      []*resourceapi.ResourceClaim{inUseClaim},
-			classes:     []*resourceapi.ResourceClass{},
-			schedulings: []*resourceapi.PodSchedulingContext{},
-			prepare:     prepare{},
-			want: want{
-				prefilter: result{
-					status: framework.NewStatus(framework.UnschedulableAndUnresolvable, `resourceclaim in use`),
-				},
-				postfilter: result{
-					status: framework.NewStatus(framework.Unschedulable, `no new claims to deallocate`),
-				},
-			},
-		},
 		"wrong-topology": {
 			// PostFilter tries to get the pod scheduleable by
 			// deallocating the claim.