#336 discard all marked as defer

[Jim Tittsler]

When a list moderator processes held messages, if they
view all messages from a specific sender and then use
the "Discard all messages marked as Defer" checkbox,
the messages are not discarded. (The "discard all
messages marked as defer" works on the main admindb
page, but not on the sender-specific page.)

Also reported in bug 1047532.
<http://sourceforge.net/tracker/index.php?func=detail&aid=1047532&group_id=103&atid=100103>

[Jim Tittsler]

sender-specific discard all marked as defer

[Tokio Kikuchi]

Logged In: YES
user_id=67709

Fixed by removing the 'discard all' check box from
msgid/sender message lists because the term 'all' may be
confusing in these cases.

Thanks Jim for raising my attention anyway.