38651 Update the macOS Podfile template platform version (cla: yes, tool)

38652 Kill dead code (cla: yes, team, tool)

38658 Roll back engine to f8e7453f11067b5801a4484283592977d18be242 (cla: yes, engine)

38662 Change from using defaults to plutil for Plist parsing (cla: yes, tool)

38686 Rename patent file (cla: yes)

38704 Adds canRequestFocus toggle to FocusNode (cla: yes, framework)

38708 Fix Catalina hot reload test by specifying the platform is iOS. (cla: no, team)