Can we remove ReadOnly property of members of an interface using c#?

PropertyInfo propertyInfo = siginfo.GetType().GetProperty(
                    "ReadOnly",
                    BindingFlags.FlattenHierarchy | BindingFlags.Instance | BindingFlags.Public);
                if (null != propertyInfo)
                {
                    //
                    // Remove the readonly property
                    //
                    propertyInfo.SetValue(siginfo, false, null);

                    this.siginfo.CertificateVerificationResults = CertificateVerificationResults.certverresValid;

                    //
                    // Set the ReadOnly property
                    //
                    propertyInfo.SetValue(siginfo, true, null);
                }