CIFS: Delete echo_retries module parm

It's the essential step before respecting MaxMpxCount value during
negotiating because we will keep only one extra slot for sending
echo requests. If there is no response during two echo intervals -
reconnect the tcp session.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/README b/fs/cifs/README
index 895da1d..b7d782b 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -753,10 +753,6 @@
 
 i.e. echo "value" > /sys/module/cifs/parameters/<param>
 
-1. echo_retries - The number of echo attempts before giving up and
-		  reconnecting to the server. The default is 5. The value 0
-		  means never reconnect.
-
-2. enable_oplocks - Enable or disable oplocks. Oplocks are enabled by default.
+1. enable_oplocks - Enable or disable oplocks. Oplocks are enabled by default.
 		    [Y/y/1]. To disable use any of [N/n/0].