Unused code is causing an exception in Quarkus at startup

[DavideD]

See quarkusio/quarkus#38263

This is the code:

	// FIXME: We could add this method in ORM and override only this code
	protected MutationOperation createOperation(ValuesAnalysis valuesAnalysis, TableMutation<?> singleTableMutation) {
		MutationOperation operation = singleTableMutation.createMutationOperation( valuesAnalysis, factory() );
		if ( operation instanceof OptionalTableUpdateOperation ) {
			// We need to plug in our own reactive operation
			return new ReactiveOptionalTableUpdateOperation(
					operation.getMutationTarget(),
					(OptionalTableUpdate) singleTableMutation,
					factory()
			);
		}
		if ( operation instanceof DeleteOrUpsertOperation
				&& factory().getJdbcServices().getDialect() instanceof OracleDialect ) {
			OracleDialect dialect = ( (OracleDialect) factory().getJdbcServices().getDialect() );
			return dialect.createOptionalTableUpdateOperation(
					( (OptionalTableUpdate) operation ).getMutationTarget(),
					(OptionalTableUpdate) operation,
					factory()
			);
		}
		return operation;
	}

I suspect this is a leftover from some experiments.

A DeleteOrUpsertOperation cannot be cast to OptionalTableUpdate so I don't think this code is actually useful.