mm: vmpressure: Don't exclude any allocation types

Although userspace processes can't directly help with kernel memory
pressure, killing userspace processes can relieve kernel memory if they
are responsible for that pressure in the first place. It doesn't make
sense to exclude any allocation types knowing that userspace can indeed
affect all memory pressure, so don't exclude any allocation types from
the pressure calculations.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Danny Lin <danny@kdrag0n.dev>