server: Remove now comment

src/becca/entities/abstract_becca_entity.ts

@@ -101,7 +101,6 @@ abstract class AbstractBeccaEntity<T extends AbstractBeccaEntity<T>> {
     /**
      * Saves entity - executes SQL, but doesn't commit the transaction on its own
      */
-    // TODO: opts not used but called a few times, maybe should be used by derived classes or passed to beforeSaving.
     save(opts?: {}): this {
         const constructorData = (this.constructor as unknown as ConstructorData<T>);
         const entityName = constructorData.entityName;