mm/bootmem.c: remove unused wrapper function reserve_bootmem_generic()

reserve_bootmem_generic() has no caller,

Signed-off-by: Lin Feng <linfeng@cn.fujitsu.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 7b74452..3f778c2 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -137,9 +137,6 @@
 #define alloc_bootmem_low_pages_node(pgdat, x) \
 	__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
 
-extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
-				   int flags);
-
 #ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
 extern void *alloc_remap(int nid, unsigned long size);
 #else
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 19262ac..1324cd7 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -460,12 +460,6 @@
 	return mark_bootmem(start, end, 1, flags);
 }
 
-int __weak __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
-				   int flags)
-{
-	return reserve_bootmem(phys, len, flags);
-}
-
 static unsigned long __init align_idx(struct bootmem_data *bdata,
 				      unsigned long idx, unsigned long step)
 {