Can these kernels be removed?

[John Law]

Hi

Being a purist, I would like to keep my system size small. I noticed I
have these packages installed. While I know an OS must have a kernel,
I am guessing some of these packages might not be needed. Anyone can
share?

linux-firmware
linux-gerneric-pae
linux-headers-3.2.0-20
linux-headers-3.2.0-20-generic-pae
linux-headers-generic-pae
linux-image-3.2.0-20-generic-pae
linux-image-generic-pae