Remove obsolete comment. (#2008)

it is indeed correct.

Co-authored-by: eskimor <eskimor@no-such-url.com>

polkadot/runtime/parachains/src/scheduler.rs

@@ -352,7 +352,6 @@ impl<T: Config> Pallet<T> {
 						None
 					},
 					Ok((pos_in_claimqueue, pe)) => {
-						// is this correct?
 						availability_cores[core_idx.0 as usize] = CoreOccupied::Paras(pe);
 
 						Some((*core_idx, pos_in_claimqueue))