Revert

Signed-off-by: Hung-Han (Henry) Chen <chenhungh@gmail.com>

src/common/k8s-api/kube-api.ts

@@ -170,7 +170,10 @@ export interface IRemoteKubeApiConfig {
     clientKeyData?: string;
   };
   /**
-   * Custom instance of https.agent
+   * Custom instance of https.agent to use for the requests
+   * 
+   * @remarks the custom agent replaced default agent, options skipTLSVerify,
+   * clientCertificateData, clientKeyData and caData are ignored.
    */
    agent?: Agent;
 }
@@ -245,7 +248,7 @@ export function forRemoteCluster<
   }
 
   if (config.agent) {
-    reqInit.agent = config.agent.constructor(agentOptions);
+    reqInit.agent = config.agent;
   }
 
   const token = config.user.token;