Revert AppReadiness singleton.

SignalMessaging/environment/AppSetup.m

@@ -9,7 +9,6 @@
 #import <SignalMessaging/OWSDatabaseMigration.h>
 #import <SignalMessaging/OWSProfileManager.h>
 #import <SignalMessaging/SignalMessaging-Swift.h>
-#import <SignalServiceKit/AppReadiness.h>
 #import <SignalServiceKit/ContactDiscoveryService.h>
 #import <SignalServiceKit/OWS2FAManager.h>
 #import <SignalServiceKit/OWSBackgroundTask.h>
@@ -70,7 +69,6 @@ NS_ASSUME_NONNULL_BEGIN
         TSSocketManager *socketManager = [[TSSocketManager alloc] init];
         TSAccountManager *tsAccountManager = [[TSAccountManager alloc] initWithPrimaryStorage:primaryStorage];
         OWS2FAManager *ows2FAManager = [[OWS2FAManager alloc] initWithPrimaryStorage:primaryStorage];
-        AppReadiness *appReadiness = [[AppReadiness alloc] initDefault];
         OWSDisappearingMessagesJob *disappearingMessagesJob =
             [[OWSDisappearingMessagesJob alloc] initWithPrimaryStorage:primaryStorage];
         ContactDiscoveryService *contactDiscoveryService = [[ContactDiscoveryService alloc] initDefault];
@@ -93,7 +91,6 @@ NS_ASSUME_NONNULL_BEGIN
                                                                     socketManager:socketManager
                                                                  tsAccountManager:tsAccountManager
                                                                     ows2FAManager:ows2FAManager
-                                                                     appReadiness:appReadiness
                                                           disappearingMessagesJob:disappearingMessagesJob
                                                           contactDiscoveryService:contactDiscoveryService]];
 

SignalServiceKit/src/SSKEnvironment.h

@@ -4,7 +4,6 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@class AppReadiness;
 @class ContactDiscoveryService;
 @class ContactsUpdater;
 @class OWS2FAManager;
@@ -46,7 +45,6 @@ NS_ASSUME_NONNULL_BEGIN
                           socketManager:(TSSocketManager *)socketManager
                        tsAccountManager:(TSAccountManager *)tsAccountManager
                           ows2FAManager:(OWS2FAManager *)ows2FAManager
-                           appReadiness:(AppReadiness *)appReadiness
                 disappearingMessagesJob:(OWSDisappearingMessagesJob *)disappearingMessagesJob
                 contactDiscoveryService:(ContactDiscoveryService *)contactDiscoveryService NS_DESIGNATED_INITIALIZER;
 
@@ -77,7 +75,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) TSSocketManager *socketManager;
 @property (nonatomic, readonly) TSAccountManager *tsAccountManager;
 @property (nonatomic, readonly) OWS2FAManager *ows2FAManager;
-@property (nonatomic, readonly) AppReadiness *appReadiness;
 @property (nonatomic, readonly) OWSDisappearingMessagesJob *disappearingMessagesJob;
 @property (nonatomic, readonly) ContactDiscoveryService *contactDiscoveryService;
 

SignalServiceKit/src/SSKEnvironment.m

@@ -28,7 +28,6 @@ static SSKEnvironment *sharedSSKEnvironment;
 @property (nonatomic) TSSocketManager *socketManager;
 @property (nonatomic) TSAccountManager *tsAccountManager;
 @property (nonatomic) OWS2FAManager *ows2FAManager;
-@property (nonatomic) AppReadiness *appReadiness;
 @property (nonatomic) OWSDisappearingMessagesJob *disappearingMessagesJob;
 @property (nonatomic) ContactDiscoveryService *contactDiscoveryService;
 
@@ -58,7 +57,6 @@ static SSKEnvironment *sharedSSKEnvironment;
                           socketManager:(TSSocketManager *)socketManager
                        tsAccountManager:(TSAccountManager *)tsAccountManager
                           ows2FAManager:(OWS2FAManager *)ows2FAManager
-                           appReadiness:(AppReadiness *)appReadiness
                 disappearingMessagesJob:(OWSDisappearingMessagesJob *)disappearingMessagesJob
                 contactDiscoveryService:(ContactDiscoveryService *)contactDiscoveryService {
     self = [super init];
@@ -82,7 +80,6 @@ static SSKEnvironment *sharedSSKEnvironment;
     OWSAssertDebug(socketManager);
     OWSAssertDebug(tsAccountManager);
     OWSAssertDebug(ows2FAManager);
-    OWSAssertDebug(appReadiness);
     OWSAssertDebug(disappearingMessagesJob);
     OWSAssertDebug(contactDiscoveryService);
 
@@ -102,7 +99,6 @@ static SSKEnvironment *sharedSSKEnvironment;
     _socketManager = socketManager;
     _tsAccountManager = tsAccountManager;
     _ows2FAManager = ows2FAManager;
-    _appReadiness = appReadiness;
     _disappearingMessagesJob = disappearingMessagesJob;
     _contactDiscoveryService = contactDiscoveryService;
 

SignalServiceKit/src/Tests/MockSSKEnvironment.m

@@ -3,7 +3,6 @@
 //
 
 #import "MockSSKEnvironment.h"
-#import "AppReadiness.h"
 #import "ContactDiscoveryService.h"
 #import "OWS2FAManager.h"
 #import "OWSBatchMessageProcessor.h"
@@ -65,7 +64,6 @@ NS_ASSUME_NONNULL_BEGIN
     TSSocketManager *socketManager = [[TSSocketManager alloc] init];
     TSAccountManager *tsAccountManager = [[TSAccountManager alloc] initWithPrimaryStorage:primaryStorage];
     OWS2FAManager *ows2FAManager = [[OWS2FAManager alloc] initWithPrimaryStorage:primaryStorage];
-    AppReadiness *appReadiness = [[AppReadiness alloc] initDefault];
     OWSDisappearingMessagesJob *disappearingMessagesJob =
         [[OWSDisappearingMessagesJob alloc] initWithPrimaryStorage:primaryStorage];
     ContactDiscoveryService *contactDiscoveryService = [[ContactDiscoveryService alloc] initDefault];
@@ -86,7 +84,6 @@ NS_ASSUME_NONNULL_BEGIN
                             socketManager:socketManager
                          tsAccountManager:tsAccountManager
                             ows2FAManager:ows2FAManager
-                             appReadiness:appReadiness
                   disappearingMessagesJob:disappearingMessagesJob
                   contactDiscoveryService:contactDiscoveryService];
     if (!self) {

SignalServiceKit/src/Util/AppReadiness.h

@@ -10,8 +10,6 @@ typedef void (^AppReadyBlock)(void);
 
 - (instancetype)init NS_UNAVAILABLE;
 
-- (instancetype)initDefault NS_DESIGNATED_INITIALIZER;
-
 // This method can be called on any thread.
 + (BOOL)isAppReady;
 

SignalServiceKit/src/Util/AppReadiness.m

@@ -3,7 +3,6 @@
 //
 
 #import "AppReadiness.h"
-#import "SSKEnvironment.h"
 #import <SignalCoreKit/Threading.h>
 
 NS_ASSUME_NONNULL_BEGIN
@@ -22,9 +21,12 @@ NS_ASSUME_NONNULL_BEGIN
 
 + (instancetype)sharedManager
 {
-    OWSAssertDebug(SSKEnvironment.shared.appReadiness);
-
-    return SSKEnvironment.shared.appReadiness;
+    static AppReadiness *sharedMyManager = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        sharedMyManager = [[self alloc] initDefault];
+    });
+    return sharedMyManager;
 }
 
 - (instancetype)initDefault