[chore][k8sattributes] Remove unused Name field of Association struct (#44547)

Follow up from
#43939 (comment).

The `Association.Name` field is not used anymore and can be removed. 

Note: It's inside the `internal/kube` pkg hence it's not a breaking
change.

Signed-off-by: ChrsMark <[email protected]>

Author: ChrsMark

processor/k8sattributesprocessor/internal/kube/client_test.go

@@ -371,7 +371,6 @@ func TestPodCreate(t *testing.T) {
 func TestPodAddOutOfSync(t *testing.T) {
 	c, _ := newTestClient(t)
 	c.Associations = append(c.Associations, Association{
-		Name: "name",
 		Sources: []AssociationSource{
 			{
 				From: ResourceSource,

processor/k8sattributesprocessor/internal/kube/kube.go

@@ -399,7 +399,6 @@ type Associations struct {
 
 // Association represents one association rule
 type Association struct {
-	Name    string
 	Sources []AssociationSource
 }
 

processor/k8sattributesprocessor/processor_test.go

@@ -629,7 +629,6 @@ func TestIPSourceWithPodAssociation(t *testing.T) {
 	m.kubernetesProcessorOperation(func(kp *kubernetesprocessor) {
 		kp.podAssociations = []kube.Association{
 			{
-				Name: "k8s.pod.ip",
 				Sources: []kube.AssociationSource{
 					{
 						From: "resource_attribute",
@@ -638,7 +637,6 @@ func TestIPSourceWithPodAssociation(t *testing.T) {
 				},
 			},
 			{
-				Name: "k8s.pod.ip",
 				Sources: []kube.AssociationSource{
 					{
 						From: "resource_attribute",
@@ -647,7 +645,6 @@ func TestIPSourceWithPodAssociation(t *testing.T) {
 				},
 			},
 			{
-				Name: "k8s.pod.ip",
 				Sources: []kube.AssociationSource{
 					{
 						From: "resource_attribute",
@@ -1085,7 +1082,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1126,7 +1122,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1164,7 +1159,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1214,7 +1208,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1387,7 +1380,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1423,7 +1415,6 @@ func TestProcessorAddContainerAttributes(t *testing.T) {
 			op: func(kp *kubernetesprocessor) {
 				kp.podAssociations = []kube.Association{
 					{
-						Name: "k8s.pod.uid",
 						Sources: []kube.AssociationSource{
 							{
 								From: "resource_attribute",
@@ -1506,7 +1497,6 @@ func TestProcessorPicksUpPassthroughPodIp(t *testing.T) {
 	m.kubernetesProcessorOperation(func(kp *kubernetesprocessor) {
 		kp.podAssociations = []kube.Association{
 			{
-				Name: "k8s.pod.ip",
 				Sources: []kube.AssociationSource{
 					{
 						From: "resource_attribute",