Remove deleted records from sync_recs so that if we compress the index afterwards we don't add the deleted records back.
Remove deleted records from sync_recs so that if we compress the index
afterwards we don't add the deleted records back.

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branch : HEAD

jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch