smbfs never retains inodes with zero refcount in the first place

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 8fc5e50..f6e9ee5 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -229,7 +229,6 @@
 {
 	VERBOSE("\n");
 	shrink_dcache_sb(SB_of(server));
-	invalidate_inodes(SB_of(server));
 }
 
 /*