isdn: eicon: Fix set-but-unused variables.

The variable 'best_id' is set but unused in
diva_mnt_add_xdi_adapter().  Just kill it off.

Similarly for the variable 'CIP' in connect_req(), 'Number' in
sig_ind(), 'Info' in dtmf_confirmation() mixer_command()
fax_connect_ack_command() fax_edata_ack_command()
rtp_connect_b3_res_command() and rtp_connect_b3_res_command(), and 'a'
in mixer_indication_coefs_set(),

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/hardware/eicon/debug.c b/drivers/isdn/hardware/eicon/debug.c
index 3626401..7a9894c 100644
--- a/drivers/isdn/hardware/eicon/debug.c
+++ b/drivers/isdn/hardware/eicon/debug.c
@@ -861,7 +861,7 @@
 void diva_mnt_add_xdi_adapter (const DESCRIPTOR* d) {
   diva_os_spin_lock_magic_t old_irql, old_irql1;
   dword sec, usec, logical, serial, org_mask;
-  int id, best_id = 0, free_id = -1;
+  int id, free_id = -1;
   char tmp[128];
   diva_dbg_entry_head_t* pmsg = NULL;
   int len;
@@ -906,7 +906,6 @@
         and slot is still free - reuse it
         */
       free_id = id;
-      best_id = 1;
       break;
     }
   }