diff --git a/Signal/src/ViewControllers/MessageDetailViewController.swift b/Signal/src/ViewControllers/MessageDetailViewController.swift
index 81de50e24..f9c42ba7c 100644
--- a/Signal/src/ViewControllers/MessageDetailViewController.swift
+++ b/Signal/src/ViewControllers/MessageDetailViewController.swift
@@ -120,9 +120,6 @@ class MessageDetailViewController: OWSViewController, MediaGalleryDataSourceDele
         scrollView.autoPinWidthToSuperview(withMargin: 0)
         scrollView.autoPin(toTopLayoutGuideOf: self, withInset: 0)
 
-        // See notes on how to use UIScrollView with iOS Auto Layout:
-        //
-        // https://developer.apple.com/library/content/releasenotes/General/RN-iOSSDK-6_0/
         let contentView = UIView.container()
         self.contentView = contentView
         scrollView.addSubview(contentView)
diff --git a/SignalMessaging/attachments/EditContactShareNameViewController.swift b/SignalMessaging/attachments/EditContactShareNameViewController.swift
index 14111331b..da6ff149e 100644
--- a/SignalMessaging/attachments/EditContactShareNameViewController.swift
+++ b/SignalMessaging/attachments/EditContactShareNameViewController.swift
@@ -252,9 +252,6 @@ public class EditContactShareNameViewController: OWSViewController, ContactNameF
 
         let fieldsView = createFieldsView()
 
-        // See notes on how to use UIScrollView with iOS Auto Layout:
-        //
-        // https://developer.apple.com/library/content/releasenotes/General/RN-iOSSDK-6_0/
         scrollView.addSubview(fieldsView)
         fieldsView.autoPinLeadingToSuperviewMargin()
         fieldsView.autoPinTrailingToSuperviewMargin()
diff --git a/SignalMessaging/contacts/OWSContactsManager.m b/SignalMessaging/contacts/OWSContactsManager.m
index 1e5fae453..7cda1c4fa 100644
--- a/SignalMessaging/contacts/OWSContactsManager.m
+++ b/SignalMessaging/contacts/OWSContactsManager.m
@@ -343,10 +343,10 @@ NSString *const OWSContactsManagerSignalAccountsDidChangeNotification
 {
     OWSAssertIsOnMainThread();
 
-    //    if ([signalAccounts isEqual:self.signalAccounts]) {
-    //        DDLogDebug(@"%@ SignalAccounts unchanged.", self.logTag);
-    //        return;
-    //    }
+    if ([signalAccounts isEqual:self.signalAccounts]) {
+        DDLogDebug(@"%@ SignalAccounts unchanged.", self.logTag);
+        return;
+    }
 
     NSMutableDictionary<NSString *, SignalAccount *> *signalAccountMap = [NSMutableDictionary new];
     for (SignalAccount *signalAccount in signalAccounts) {