[skip ci] Update comments accordingly

cmd/soroban-rpc/internal/daemon/daemon.go

@@ -342,23 +342,19 @@ func (d *Daemon) mustInitializeStorage(cfg *config.Config) *feewindow.FeeWindows
 		d.logger.WithError(err).Fatal("could not get ledger range for migration")
 	}
 
-	//
-	// 2. However, if we have already performed migrations, we don't want to
-	//    count those in the "to migrate" ledger range. Thus, db.BuildMigrations
-	//    will return the *applicable* range for the incomplete set of migrations.
-	//    That means **it may be empty** if all migrations have occurred.
-	//
 	dataMigrations, err := db.BuildMigrations(
 		readTxMetaCtx, d.logger, d.db, cfg.NetworkPassphrase, retentionRange)
 	if err != nil {
 		d.logger.WithError(err).Fatal("could not build migrations")
 	}
 
 	//
-	// 4. Finally, we can incorporate the fee analysis window. If there are
-	//    migrations to do, this will have no effect, since the migration window is
-	//    larger than the fee window. If there were *no* migrations, though, this
-	//    means the final range is only the fee stat analysis range.
+	// 2. Then, incorporate the fee analysis window. If there are migrations to
+	//    do, this will have no effect, since the migration window is larger than
+	//    the fee window. If there were *no* migrations, though, this means the
+	//    final range is only the fee stat analysis range. By treating the fee
+	//    window as if it's a migration, we can make the interface here really
+	//    clean.
 	//
 	feeStatsRange, err := db.GetMigrationLedgerRange(readTxMetaCtx, d.db, maxFeeRetentionWindow)
 	if err != nil {
@@ -369,7 +365,7 @@ func (d *Daemon) mustInitializeStorage(cfg *config.Config) *feewindow.FeeWindows
 	ledgerSeqRange := dataMigrations.ApplicableRange()
 
 	//
-	// 5. Apply migration for events & transactions, and perform fee stat analysis.
+	// 3. Apply all migrations, which includes fee stat analysis.
 	//
 	var initialSeq, currentSeq uint32
 	err = db.NewLedgerReader(d.db).StreamLedgerRange(