[ticket/11471] Unrelated text in e-mail templates

Some e-mail templates contain text unrelated
with the subject of the e-mail

PHPBB3-11471

phpBB/language/en/email/report_deleted.txt

@@ -4,5 +4,4 @@ Hello {USERNAME},
 
 You are receiving this notification because the report you filed on the post "{POST_SUBJECT}" in "{TOPIC_TITLE}" at "{SITENAME}" was deleted by a moderator or by an administrator.
 
-
-{EMAIL_SIG}
+{EMAIL_SIG}