8212605: Pure-Java implementation of AccessController.doPrivileged

Reviewed-by: dholmes, mullan, vlivanov, mchung, alanb, rriggs

src/java.base/share/classes/java/security/ProtectionDomain.java

@@ -394,11 +394,6 @@ public class ProtectionDomain {
         return false;
     }
 
-    // called by the VM -- do not remove
-    boolean impliesCreateAccessControlContext() {
-        return implies(SecurityConstants.CREATE_ACC_PERMISSION);
-    }
-
     /**
      * Convert a ProtectionDomain to a String.
      */