diff --git a/pkg/apis/troubleshoot/v1beta2/supportbundle_types.go b/pkg/apis/troubleshoot/v1beta2/supportbundle_types.go
index 4d324e37..0da842a9 100644
--- a/pkg/apis/troubleshoot/v1beta2/supportbundle_types.go
+++ b/pkg/apis/troubleshoot/v1beta2/supportbundle_types.go
@@ -48,24 +48,6 @@ type SupportBundle struct {
 	Status SupportBundleStatus `json:"status,omitempty"`
 }
 
-func (s *SupportBundle) concatSpec(bundle *SupportBundle) {
-	for _, v := range bundle.Spec.Collectors {
-		s.Spec.Collectors = append(bundle.Spec.Collectors, v)
-	}
-	for _, v := range bundle.Spec.AfterCollection {
-		s.Spec.AfterCollection = append(bundle.Spec.AfterCollection, v)
-	}
-	for _, v := range bundle.Spec.HostCollectors {
-		s.Spec.HostCollectors = append(bundle.Spec.HostCollectors, v)
-	}
-	for _, v := range bundle.Spec.HostAnalyzers {
-		s.Spec.HostAnalyzers = append(bundle.Spec.HostAnalyzers, v)
-	}
-	for _, v := range bundle.Spec.Analyzers {
-		s.Spec.Analyzers = append(bundle.Spec.Analyzers, v)
-	}
-}
-
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // SupportBundleList contains a list of SupportBundle