get rid of file_fsync()

Copy and simplify in the only two users remaining.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 74b473a..a32c241 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -154,7 +154,7 @@
 	}
 }
 
-static int hfsplus_sync_fs(struct super_block *sb, int wait)
+int hfsplus_sync_fs(struct super_block *sb, int wait)
 {
 	struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;