diff --git a/server/src/main/java/org/opensearch/action/ActionRequest.java b/server/src/main/java/org/opensearch/action/ActionRequest.java
index 2254472dd6801..7ab87065bef7e 100644
--- a/server/src/main/java/org/opensearch/action/ActionRequest.java
+++ b/server/src/main/java/org/opensearch/action/ActionRequest.java
@@ -35,7 +35,6 @@
 import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
-import org.opensearch.identity.Subject;
 import org.opensearch.transport.TransportRequest;
 
 import java.io.IOException;
@@ -48,8 +47,6 @@
 @PublicApi(since = "1.0.0")
 public abstract class ActionRequest extends TransportRequest {
 
-    private Subject runAs;
-
     public ActionRequest() {
         super();
         // this does not set the listenerThreaded API, if needed, its up to the caller to set it
@@ -70,14 +67,6 @@ public boolean getShouldStoreResult() {
         return false;
     }
 
-    public void runAs(Subject runAs) {
-        this.runAs = runAs;
-    }
-
-    public Subject getRunAs() {
-        return this.runAs;
-    }
-
     @Override
     public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
diff --git a/server/src/main/java/org/opensearch/client/support/AbstractClient.java b/server/src/main/java/org/opensearch/client/support/AbstractClient.java
index f94e93e30fc46..509cd732357d6 100644
--- a/server/src/main/java/org/opensearch/client/support/AbstractClient.java
+++ b/server/src/main/java/org/opensearch/client/support/AbstractClient.java
@@ -422,7 +422,6 @@
 import org.opensearch.core.common.bytes.BytesReference;
 import org.opensearch.core.tasks.TaskId;
 import org.opensearch.core.xcontent.MediaType;
-import org.opensearch.identity.Subject;
 import org.opensearch.threadpool.ThreadPool;
 
 import java.util.Map;
@@ -481,20 +480,7 @@ public final <Request extends ActionRequest, Response extends ActionResponse> vo
         Request request,
         ActionListener<Response> listener
     ) {
-        Subject runAs = request.getRunAs();
-        if (runAs != null) {
-            try {
-                runAs.runAs(() -> {
-                    doExecute(action, request, listener);
-                    return null;
-                });
-            } catch (Exception e) {
-                throw new RuntimeException(e);
-            }
-        } else {
-            // run with default subject. If security is installed, default subject is the authenticated user
-            doExecute(action, request, listener);
-        }
+        doExecute(action, request, listener);
     }
 
     protected abstract <Request extends ActionRequest, Response extends ActionResponse> void doExecute(