pstore/ramoops: Remove useless memblock header

Seems the linux/memblock.h inclusion was added early on due
to usage of some memblock allocation routine. But that was
removed, header was forgotten, hence let's remove that.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Link: https://patch.msgid.link/20260218193940.912143-2-gpiccoli@igalia.com
Signed-off-by: Kees Cook <kees@kernel.org>

Author: guilhermepiccoli

fs/pstore/ram_core.c

@@ -12,7 +12,6 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
-#include <linux/memblock.h>
 #include <linux/rslib.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>