fixing linter issue

Author: janardhankrishna-sai

security/advancedtls/advancedtls_integration_test.go

@@ -98,7 +98,7 @@ func callAndVerify(msg string, client pb.GreeterClient, shouldFail bool) error {
 
 // TODO(ZhenLian): remove shouldFail and add ...DialOption to the function
 // signature to provider cleaner tests.
-func callAndVerifyWithClientConn(connCtx context.Context, address string, msg string, creds credentials.TransportCredentials, shouldFail bool) (*grpc.ClientConn, pb.GreeterClient, error) {
+func callAndVerifyWithClientConn(_ context.Context, address string, msg string, creds credentials.TransportCredentials, shouldFail bool) (*grpc.ClientConn, pb.GreeterClient, error) {
 	var conn *grpc.ClientConn
 	var err error
 	// If we want the test to fail, we establish a non-blocking connection to