Group updates can be deleted

Removed some dead code re: NSCopy/Coding, since it seems unused.

// FREEBIE

Signal/src/Models/OWSCall.h

@@ -2,11 +2,11 @@
 //  Portions Copyright (c) 2016 Open Whisper Systems. All rights reserved.
 
 #import "OWSMessageData.h"
-#import "TSMessageAdapter.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
 @class TSCall;
+@class TSInteraction;
 
 typedef enum : NSUInteger {
     kCallOutgoing = 1,
@@ -17,14 +17,15 @@ typedef enum : NSUInteger {
     kGroupUpdate = 6
 } CallStatus;
 
-@interface OWSCall : NSObject <OWSMessageData, NSCoding, NSCopying>
+@interface OWSCall : NSObject <OWSMessageData>
 
 #pragma mark - Initialization
 
 - (instancetype)initWithCallRecord:(TSCall *)callRecord;
 
-- (instancetype)initWithCallerId:(NSString *)callerId
+- (instancetype)initWithInteraction:(TSInteraction *)interaction
-               callerDisplayName:(NSString *)callerDisplayName
+                           callerId:(NSString *)senderId
+                  callerDisplayName:(NSString *)senderDisplayName
                                date:(nullable NSDate *)date
                              status:(CallStatus)status
                       displayString:(NSString *)detailString NS_DESIGNATED_INITIALIZER;

Signal/src/Models/OWSCall.m

@@ -36,7 +36,6 @@ NS_ASSUME_NONNULL_BEGIN
         DDLogError(@"%@ Unexpected thread type: %@", self.tag, thread);
     }
 
-
     CallStatus status = 0;
     switch (callRecord.callType) {
         case RPRecentCallTypeOutgoing:
@@ -70,22 +69,16 @@ NS_ASSUME_NONNULL_BEGIN
             break;
     }
 
-    self = [self initWithCallerId:contactThread.contactIdentifier
+    return [self initWithInteraction:callRecord
+                            callerId:contactThread.contactIdentifier
                    callerDisplayName:name
                                 date:callRecord.date
                               status:status
                        displayString:detailString];
-
-    if (!self) {
-        return self;
-    }
-
-    _interaction = callRecord;
-
-    return self;
 }
 
-- (instancetype)initWithCallerId:(NSString *)senderId
+- (instancetype)initWithInteraction:(TSInteraction *)interaction
+                           callerId:(NSString *)senderId
                   callerDisplayName:(NSString *)senderDisplayName
                                date:(nullable NSDate *)date
                              status:(CallStatus)status
@@ -99,6 +92,7 @@ NS_ASSUME_NONNULL_BEGIN
         return self;
     }
 
+    _interaction = interaction;
     _senderId = [senderId copy];
     _senderDisplayName = [senderDisplayName copy];
     _date = [date copy];
@@ -184,42 +178,6 @@ NS_ASSUME_NONNULL_BEGIN
     return NO;
 }
 
-#pragma mark - NSCoding
-
-- (nullable instancetype)initWithCoder:(NSCoder *)aDecoder
-{
-    NSString *senderId = [aDecoder decodeObjectForKey:NSStringFromSelector(@selector(senderId))];
-    NSString *senderDisplayName = [aDecoder decodeObjectForKey:NSStringFromSelector(@selector(senderDisplayName))];
-    NSDate *date = [aDecoder decodeObjectForKey:NSStringFromSelector(@selector(date))];
-    CallStatus status = (CallStatus)[aDecoder decodeIntegerForKey:NSStringFromSelector(@selector(status))];
-    NSString *displayString = @""; // FIXME what should this be?
-
-    return [self initWithCallerId:senderId
-                callerDisplayName:senderDisplayName
-                             date:date
-                           status:status
-                    displayString:displayString];
-}
-
-- (void)encodeWithCoder:(NSCoder *)aCoder
-{
-    [aCoder encodeObject:self.senderId forKey:NSStringFromSelector(@selector(senderId))];
-    [aCoder encodeObject:self.senderDisplayName forKey:NSStringFromSelector(@selector(senderDisplayName))];
-    [aCoder encodeObject:self.date forKey:NSStringFromSelector(@selector(date))];
-    [aCoder encodeDouble:self.status forKey:NSStringFromSelector(@selector(status))];
-}
-
-#pragma mark - NSCopying
-
-- (instancetype)copyWithZone:(nullable NSZone *)zone
-{
-    return [[[self class] allocWithZone:zone] initWithCallerId:self.senderId
-                                             callerDisplayName:self.senderDisplayName
-                                                          date:self.date
-                                                        status:self.status
-                                                 displayString:self.detailString];
-}
-
 - (NSUInteger)messageHash
 {
     return self.hash;

Signal/src/Models/TSMessageAdapaters/TSMessageAdapter.m

@@ -186,7 +186,8 @@
             } else if (adapter.infoMessageType == TSInfoMessageTypeGroupUpdate) {
                 status = kGroupUpdate;
             }
-            OWSCall *call = [[OWSCall alloc] initWithCallerId:@""
+            OWSCall *call = [[OWSCall alloc] initWithInteraction:interaction
+                                                        callerId:@""
                                                callerDisplayName:adapter.messageBody
                                                             date:nil
                                                           status:status