tests: Regrouping of SMTP tests

tests/data/test906

@@ -1,51 +0,0 @@
-<testcase>
-<info>
-<keywords>
-SMTP
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-smtp
-</server>
- <name>
-SMTP without --mail-from
- </name>
-<stdin>
-From: different
-To: another
-
-body
-</stdin>
- <command>
-smtp://%HOSTIP:%SMTPPORT/user --mail-rcpt 906@example.com -T -
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-<protocol>
-EHLO user
-MAIL FROM:<>
-RCPT TO:<906@example.com>
-DATA
-QUIT
-</protocol>
-<upload>
-From: different
-To: another
-
-body
-.
-</upload>
-</verify>
-</testcase>