Release 3.9.0 - Updated ChangeLog (#1476)

* Updated ChangeLog for previous revert( INTENG-21518)

Author: NidhiDixit09

ChangeLog.md

@@ -3,7 +3,6 @@ Branch iOS SDK Change Log
 v.3.9.0
 - Integration Validator 2.0 - Improved integration validator to provide references to how to fix when a check fails, export logs from the app and invoke it using query parameter
 - Fixed Integration Validator crash when URIs and bundle ids from the server are empty.
-- Removed extra macros for tvOS check in umbrella header which were causing compiliation error in hybrid apps.
 - Fixed Init Race for Push notifications
 - Fixed issue which was not sending linking request when tracking is disabled and app is launched via spotlight results.
 - Added test apps for Mobileboost.