diff --git a/SignalServiceKit/src/Messages/OWSDeliveryReceiptManager.h b/SignalServiceKit/src/Messages/OWSDeliveryReceiptManager.h
index 2d411a13d..ea3452a8b 100644
--- a/SignalServiceKit/src/Messages/OWSDeliveryReceiptManager.h
+++ b/SignalServiceKit/src/Messages/OWSDeliveryReceiptManager.h
@@ -4,85 +4,15 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-//@class SSKProtoSyncMessageRead;
-//@class TSIncomingMessage;
-//@class TSOutgoingMessage;
-//@class TSThread;
-//@class YapDatabaseReadTransaction;
-//@class YapDatabaseReadWriteTransaction;
-
 @class OWSPrimaryStorage;
 @class SSKProtoEnvelope;
 
-// extern NSString *const kIncomingMessageMarkedAsReadNotification;
-
-// There are four kinds of read receipts:
-//
-// * Read receipts that this client sends to linked
-//   devices to inform them that a message has been read.
-// * Read receipts that this client receives from linked
-//   devices that inform this client that a message has been read.
-//    * These read receipts are saved so that they can be applied
-//      if they arrive before the corresponding message.
-// * Read receipts that this client sends to other users
-//   to inform them that a message has been read.
-// * Read receipts that this client receives from other users
-//   that inform this client that a message has been read.
-//    * These read receipts are saved so that they can be applied
-//      if they arrive before the corresponding message.
-//
-// This manager is responsible for handling and emitting all four kinds.
 @interface OWSDeliveryReceiptManager : NSObject
 
 - (instancetype)init NS_UNAVAILABLE;
 - (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage NS_DESIGNATED_INITIALIZER;
 + (instancetype)sharedManager;
 
-//#pragma mark - Sender/Recipient Read Receipts
-//
-//// This method should be called when we receive a read receipt
-//// from a user to whom we have sent a message.
-////
-//// This method can be called from any thread.
-//- (void)processDeliveryReceiptsFromRecipientId:(NSString *)recipientId
-//                            sentTimestamps:(NSArray<NSNumber *> *)sentTimestamps
-//                             readTimestamp:(uint64_t)readTimestamp;
-//
-//- (void)applyEarlyDeliveryReceiptsForOutgoingMessageFromLinkedDevice:(TSOutgoingMessage *)message
-//                                                     transaction:(YapDatabaseReadWriteTransaction *)transaction;
-//
-//#pragma mark - Linked Device Read Receipts
-//
-//- (void)processDeliveryReceiptsFromLinkedDevice:(NSArray<SSKProtoSyncMessageRead *> *)DeliveryReceiptProtos
-//                              readTimestamp:(uint64_t)readTimestamp
-//                                transaction:(YapDatabaseReadWriteTransaction *)transaction;
-//
-//- (void)applyEarlyDeliveryReceiptsForIncomingMessage:(TSIncomingMessage *)message
-//                                     transaction:(YapDatabaseReadWriteTransaction *)transaction;
-//
-//#pragma mark - Locally Read
-//
-//// This method cues this manager:
-////
-//// * ...to inform the sender that this message was read (if read receipts
-////      are enabled).
-//// * ...to inform the local user's other devices that this message was read.
-////
-//// Both types of messages are deduplicated.
-////
-//// This method can be called from any thread.
-//- (void)messageWasReadLocally:(TSIncomingMessage *)message;
-//
-//- (void)markAsReadLocallyBeforeTimestamp:(uint64_t)timestamp thread:(TSThread *)thread;
-//
-//#pragma mark - Settings
-//
-//- (void)prepareCachedValues;
-//
-//- (BOOL)areDeliveryReceiptsEnabled;
-//- (BOOL)areDeliveryReceiptsEnabledWithTransaction:(YapDatabaseReadTransaction *)transaction;
-//- (void)setAreDeliveryReceiptsEnabled:(BOOL)value;
-
 - (void)envelopeWasReceived:(SSKProtoEnvelope *)envelope;
 
 @end