Revisit TODOs in the SAE work.

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageCell.m

@@ -1370,7 +1370,7 @@ const CGFloat OWSMessageCellCornerRadius = 17;
     OWSAssert(backupZipPath.length > 0);
 
     OWSBackupImportViewController *backupViewController = [OWSBackupImportViewController new];
-    // TODO: Add support for restoring password-protected backups.
+    // There currently isn't any support for restoring password-protected backups.
     [backupViewController importBackup:backupZipPath password:nil];
     UINavigationController *navigationController =
         [[UINavigationController alloc] initWithRootViewController:backupViewController];

SignalMessaging/profiles/ProfileFetcherJob.swift

@@ -141,7 +141,6 @@ public class ProfileFetcherJob: NSObject {
     }
 }
 
-// TODO: This was a struct.
 @objc
 public class SignalServiceProfile: NSObject {
     let TAG = "[SignalServiceProfile]"

SignalServiceKit/src/Storage/OWSStorage.h

@@ -50,7 +50,6 @@ extern NSString *const StorageIsReadyNotification;
 
 + (void)resetAllStorage;
 
-// TODO: Deprecate?
 - (YapDatabaseConnection *)newDatabaseConnection;
 
 #ifdef DEBUG

SignalServiceKit/src/Storage/OWSStorage.m

@@ -263,7 +263,7 @@ typedef NSData *_Nullable (^CreateDatabaseMetadataBlock)(void);
             // Try to reset app by deleting all databases.
             //
             // TODO: Possibly clean up all app files.
-            //            [OWSStorage deleteDatabaseFiles];
+            // [OWSStorage deleteDatabaseFiles];
 
             if (![self tryToLoadDatabase]) {
                 OWSFail(@"%@ Could not load database (second try)", self.logTag);
@@ -599,8 +599,8 @@ typedef NSData *_Nullable (^CreateDatabaseMetadataBlock)(void);
 
         if (CurrentAppContext().isMainApp) {
             if (CurrentAppContext().isInBackground) {
-                // TODO: Rather than crash here, we should detect the situation earlier
+                // Rather than crash here, we should have already detected the situation earlier
-                // and exit gracefully - (in the app delegate?). See the `
+                // and exited gracefully (in the app delegate) using isDatabasePasswordAccessible.
                 // This is a last ditch effort to avoid blowing away the user's database.
                 [self raiseKeySpecInaccessibleExceptionWithErrorDescription:errorDescription];
             }

SignalServiceKit/src/Util/AppVersion.m

@@ -38,7 +38,6 @@ NSString *const kNSUserDefaults_LastCompletedLaunchAppVersion_SAE
     return instance;
 }
 
-// TODO: Modify these NSUserDefaults keys for SAE.
 - (void)configure {
     self.currentAppVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];