Reference sheet for post-3.16 deprecation clean up (#9870)

Part of flutter/flutter#139243
With the release of 3.16, these APIs are next to be removed from the
framework.

firebase.json

@@ -302,6 +302,7 @@
       { "source": "/go/deprecations-removed-after-3-7", "destination": "https://docs.google.com/spreadsheets/d/1WCQmKobsgslfhqf6uL7I2BKk5KKhGX-n_xfk9g3CTEE/edit?usp=sharing", "type": 301 },
       { "source": "/go/deprecations-removed-after-3-10", "destination": "https://docs.google.com/spreadsheets/d/1gs2tvYBuwycP1XAZsDbMuqP5jUa6gWH1a0ZQGrzjXvw/edit?usp=sharing", "type": 301 },
       { "source": "/go/deprecations-removed-after-3-13", "destination": "https://docs.google.com/spreadsheets/d/1zzyBRdIkqiEcpv_njEQA7pyG7X8PcNhvXFYrEAB8P78/edit?usp=sharing", "type": 301 },
+      { "source": "/go/deprecations-removed-after-3-16", "destination": "https://docs.google.com/spreadsheets/d/1ei3UmfvhmGGuwAGgLaQo1k_pgdu9Mu06tHPuSaS4TI4/edit?usp=sharing", "type": 301 },
       { "source": "/go/desktop-multi-window-support", "destination": "https://docs.google.com/document/d/11_4wntz_9IJTQOo_Qhp7QF4RfpIMTfVygtOTxQ4OGHY/edit", "type": 301 },
       { "source": "/go/desktop-multi-view-runner-apis", "destination": "https://docs.google.com/document/d/1WkJuzifgJXyceaSoCCu8qTETYmYBOYKoz7Qaxtsore4/edit?usp=sharing", "type": 301 },
       { "source": "/go/desktop-release-conductor", "destination": "https://docs.google.com/document/d/15AwPXNd5FvItAqM0wa2VK0tRrqtRTgM8vR5LQeT2Mag/edit?usp=sharing&resourcekey=0-yZ2FAN-wEKwKT-ymdisetA", "type": 301 },