mm/memory-failure: remove confusing initialization to count

It's meaningless and confusing to init local variable count to 1.  Remove
it.  No functional change intended.

Link: https://lkml.kernel.org/r/20240612071835.157004-7-linmiaohe@huawei.comSigned-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/memory-failure.c

@@ -2542,7 +2542,7 @@ int unpoison_memory(unsigned long pfn)
 	struct folio *folio;
 	struct page *p;
 	int ret = -EBUSY, ghp;
-	unsigned long count = 1;
+	unsigned long count;
 	bool huge = false;
 	static DEFINE_RATELIMIT_STATE(unpoison_rs, DEFAULT_RATELIMIT_INTERVAL,
 					DEFAULT_RATELIMIT_BURST);