cifs: remove redundant initialization of variable rc

The variable rc is being initialized with a value that is never read, the
assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/cifssmb.c

@@ -1220,7 +1220,7 @@ SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 	    int *pOplock, FILE_ALL_INFO *pfile_info,
 	    const struct nls_table *nls_codepage, int remap)
 {
-	int rc = -EACCES;
+	int rc;
 	OPENX_REQ *pSMB = NULL;
 	OPENX_RSP *pSMBr = NULL;
 	int bytes_returned;