Kernel: Remove the kmalloc_eternal heap :^)

This was a premature optimization from the early days of SerenityOS.
The eternal heap was a simple bump pointer allocator over a static
byte array. My original idea was to avoid heap fragmentation and improve
data locality, but both ideas were rooted in cargo culting, not data.

We would reserve 4 MiB at boot and only ended up using ~256 KiB, wasting
the rest.

This patch replaces all kmalloc_eternal() usage by regular kmalloc().

1 files changed, 0 insertions, 1 deletions

diff --git a/Kernel/Memory/PhysicalRegion.h b/Kernel/Memory/PhysicalRegion.h
index 2de2b2f3ae..19c527f7f1 100644
--- a/Kernel/Memory/PhysicalRegion.h
+++ b/Kernel/Memory/PhysicalRegion.h
@@ -13,7 +13,6 @@
 namespace Kernel::Memory {
 
 class PhysicalRegion {
-    AK_MAKE_ETERNAL;
     AK_MAKE_NONCOPYABLE(PhysicalRegion);
     AK_MAKE_NONMOVABLE(PhysicalRegion);