refactor(store): remove redundant comment about key types in block cleanup

Author: samcm

pkg/beacon/ssz/encoder.go

@@ -39,7 +39,7 @@ type Encoder struct {
 
 // NewEncoder creates a new SSZ encoder.
 // If memoryBudget is > 0, limits concurrent SSZ encoding to that many bytes.
-// If memoryBudget is <= 0, no limit is applied (original behavior).
+// If memoryBudget is <= 0, no limit is applied.
 func NewEncoder(customPreset bool, memoryBudget int64) *Encoder {
 	var sem *semaphore.Weighted
 	if memoryBudget > 0 {

pkg/beacon/store/block.go

@@ -89,7 +89,6 @@ func (c *Block) cleanupBlock(block *spec.VersionedSignedBeaconBlock) error {
 		return err
 	}
 
-	// Keys must match the types used in Add(): slot (phase0.Slot) and stateRoot (phase0.Root)
 	c.slotToBlockRoot.Delete(slot)
 	c.stateRootToBlockRoot.Delete(stateRoot)