all: fix typos in comments (#28682)

chore(core,eth):fix a couple of typos

eth/downloader/downloader.go

@@ -576,7 +576,7 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td, ttd *
 		// For non-merged networks, if there is a checkpoint available, then calculate
 		// the ancientLimit through that. Otherwise calculate the ancient limit through
 		// the advertised height of the remote peer. This most is mostly a fallback for
-		// legacy networks, but should eventually be droppped. TODO(karalabe).
+		// legacy networks, but should eventually be dropped. TODO(karalabe).
 		if beaconMode {
 			// Beacon sync, use the latest finalized block as the ancient limit
 			// or a reasonable height if no finalized block is yet announced.

eth/downloader/resultstore.go

@@ -142,7 +142,7 @@ func (r *resultStore) HasCompletedItems() bool {
 // countCompleted returns the number of items ready for delivery, stopping at
 // the first non-complete item.
 //
-// The mthod assumes (at least) rlock is held.
+// The method assumes (at least) rlock is held.
 func (r *resultStore) countCompleted() int {
 	// We iterate from the already known complete point, and see
 	// if any more has completed since last count