How to delete kernel

Hello to all members of the forum,and to all admins!

Please,can you help me,I want to delete kernel,along with grub entries.
Currently I have two kernels,and I have been using only one.

Thank you for your hard effort.

Greetings

Hi,

Please show the output

eix -I sources | wgetpaste

http://pastebin.calculate-linux.org/en/show/11543

Do you want to remove calculate-sources?

emerge -C sys-kernel/calculate-sources

Yes,along with vanilla sources.
How to remove vanilla kernel sources ?

You have installed two cores: calculate-sources and hardened-sources. The source code is hardened-sources you can delete only their own. Portage simply unpacks the source code.

Thank you very much. I have successfully deleted calculate kernel