Disable calendar and contact sync in active sync devices for exchange 2013

[serverpro]

I have an standalone exchange 2013 server and almost all the users are using their emails in mobile devices due to this COVID-19 however we are looking for an option to disable contact and calendar sync in the users active sync devices so that they can only send an receive emails but should not be able to see the GAL and calendar in active sync devices. 

Let me know if this is possible.

[#2]

no, but you can block ActiveSync and deploy the Outlook Mobile Client which uses a REST API.
This will containerize the Calendar and Contact information inside the Outlook Mobile app and prevent it from being exfiltrated to the underlying device especially when combined with an Intune App Protection Policy.
Technologies required:
Hybrid Modern Auth for Exchange 2013
https://docs.microsoft.com/en-us/office365/enterprise/hybrid-modern-auth-overview
Intune Mobile App Protection
https://docs.microsoft.com/en-us/mem/intune/apps/app-protection-policy