Update CHANGELOG and remove the deprecated FacebookSDK.podspec file

Summary:
Added changes and fixes to CHANGELOG.md.

Removed FacebookSDK.podspec since it is redundant and is no longer being published. The last version of it that was published was 11.2.1

Reviewed By: joesus

Differential Revision: D32073830

fbshipit-source-id: 0fcf6998d9b13f437af7d2d48d27a5c4d71772e2

CHANGELOG.md

@@ -10,6 +10,18 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## 12.1.0
 
+### Changed
+- When using SPM, FacebookAEM and FacebookBasics no longer have to be explicitly included
+
+### Fixed
+- FBSDKShareDialog show does nothing the first time (Issue #1919)
+- Unable to archive app for distribution using Xcode 12.5.1 and Swift Package Manager (Issue #1917)
+- iOS 15: NSKeyedUnarchiver warning (Issued #1887)
+
+### Deprecated
+- The aggregate FacebookSDK pod is deprecated. Please use one of the individual pods instead (i.e. FBSDKCoreKit,
+  FBSDKShareKit, FBSDKLoginKit, etc.)
+
 [2021-10-26](https://github.com/facebook/facebook-ios-sdk/releases/tag/v12.1.0) |
 [Full Changelog](https://github.com/facebook/facebook-ios-sdk/compare/v12.0.2...v12.1.0)
 

scripts/publish_cocoapods.sh

@@ -42,7 +42,3 @@ push_specs_and_update FBSDKTVOSKit FacebookGamingServices
 
 # 6. FBSDKGamingServicesKit (dependencies: FacebookGamingServices)
 push_specs_and_update FBSDKGamingServicesKit
-
-# NOTE: The release might need to be published before publishing FacebookSDK will work since it tries to access a FacebookSDK_Static.zip from a release that hasn't been published
-# 7. FacebookSDK
-push_specs_and_update FacebookSDK