diff --git a/src/main/java/org/opensearch/security/user/AuthCredentials.java b/src/main/java/org/opensearch/security/user/AuthCredentials.java
index f939fa28b8..f024fe271f 100644
--- a/src/main/java/org/opensearch/security/user/AuthCredentials.java
+++ b/src/main/java/org/opensearch/security/user/AuthCredentials.java
@@ -108,16 +108,6 @@ public AuthCredentials(final String username, List<String> securityRoles, String
         this.securityRoles.addAll(securityRoles);
     }
 
-    private AuthCredentials(
-        final String username,
-        byte[] password,
-        Object nativeCredentials,
-        List<String> securityRoles,
-        String... backendRoles
-    ) {
-        this(username, null, null, backendRoles);
-    }
-
     private AuthCredentials(final String username, byte[] password, Object nativeCredentials, String... backendRoles) {
         super();