How to remove Cache-Control Use .htaccess?

Hi,

How to remove must-revalidate and max-age=0 from Cache-Control header using .htaccess?

And How to remove X-Powered-By PHP/5.6.24 using .htaccess?
I try using this code: Header unset X-Powered-By but still not work.

Can someone help me, please! Thanks

Note:
- I'm using Plesk 12.0.18
- PHP run as FastCGI
- Web Server Setting, using Smart static files processing with Serve static files directly by nginx.