update pods for PN with preview

Manifest.lock

@@ -60,7 +60,6 @@ PODS:
   - Mantle (2.1.0):
     - Mantle/extobjc (= 2.1.0)
   - Mantle/extobjc (2.1.0)
-  - Mixpanel (3.4.7)
   - NVActivityIndicatorView (4.7.0):
     - NVActivityIndicatorView/Presenter (= 4.7.0)
   - NVActivityIndicatorView/Presenter (4.7.0)
@@ -220,7 +219,6 @@ DEPENDENCIES:
   - HKDFKit (from `https://github.com/signalapp/HKDFKit.git`)
   - HKDFKit/Tests (from `https://github.com/signalapp/HKDFKit.git`)
   - Mantle (from `https://github.com/signalapp/Mantle`, branch `signal-master`)
-  - Mixpanel (~> 3.4)
   - NVActivityIndicatorView (~> 4.7)
   - PromiseKit (= 6.5.3)
   - PureLayout
@@ -249,7 +247,6 @@ SPEC REPOS:
     - GCDWebServer
     - GoogleUtilities
     - libPhoneNumber-iOS
-    - Mixpanel
     - NVActivityIndicatorView
     - PromiseKit
     - PureLayout
@@ -331,7 +328,6 @@ SPEC CHECKSUMS:
   HKDFKit: 3b6dbbb9d59c221cc6c52c3aa915700cbf24e376
   libPhoneNumber-iOS: e444379ac18bbfbdefad571da735b2cd7e096caa
   Mantle: 2fa750afa478cd625a94230fbf1c13462f29395b
-  Mixpanel: 696e0a1c7f2685aa06bb23829b7a58ab7203d6c7
   NVActivityIndicatorView: b19ddab2576f805cbe0fb2306cba3476e09a1dea
   PromiseKit: c609029bdd801f792551a504c695c7d3098b42cd
   PureLayout: f08c01b8dec00bb14a1fefa3de4c7d9c265df85e
@@ -347,6 +343,6 @@ SPEC CHECKSUMS:
   YapDatabase: b418a4baa6906e8028748938f9159807fd039af4
   YYImage: 1e1b62a9997399593e4b9c4ecfbbabbf1d3f3b54
 
-PODFILE CHECKSUM: 156b349e2791f53224143291e318592b9c1f7ade
+PODFILE CHECKSUM: 472252f3a4801d0d14d9553ff33cf52ef0846dc3
 
 COCOAPODS: 1.5.3