Remove sendmail from foremanctl builds (#4734)

Co-authored-by: Maximilian Kolb <mail@maximilian-kolb.de>
(cherry picked from commit a0c48d2)

Author: jafiala

guides/common/modules/proc_configuring-satellite-for-outgoing-emails.adoc

@@ -4,15 +4,22 @@
 = Configuring {ProjectServer} for outgoing emails
 
 [role="_abstract"]
+ifdef::foremanctl[]
+To send email messages from {ProjectServer}, you can use an SMTP server.
+endif::[]
+ifndef::foremanctl[]
 To send email messages from {ProjectServer}, you can use an SMTP server or the `sendmail` command.
 
 :FeatureName: The `sendmail` command
 :FeatureAlternative: an SMTP service
 include::snip_deprecated-feature.adoc[]
+endif::[]
 
+ifndef::foremanctl[]
 .Prerequisites
 * Some SMTP servers with anti-spam protection or greylisting features are known to cause problems.
 To set up outgoing email with such a service, install and configure an SMTP service on {ProjectServer} for relay or use the `sendmail` command.
+endif::[]
 
 .Procedure
 . In the {ProjectWebUI}, navigate to *Administer* > *Settings*.
@@ -49,6 +56,7 @@ For more information, see https://support.google.com/mail/answer/185833[Sign in
 |SMTP port                 | 587 |
 |SMTP username             | _user_@gmail.com | Use the Google account name.
 |====
+ifndef::foremanctl[]
 +
 .. The following example uses the `sendmail` command as a delivery method:
 +
@@ -65,6 +73,7 @@ endif::[]
 For more information see the *sendmail 1* man page.
 |Sendmail arguments | -i
 |====
+endif::[]
 . To send email by using an SMTP server that uses TLS authentication, also perform one of the following steps:
 +
 * Mark the CA certificate of the SMTP server as trusted.

guides/common/modules/ref_email-settings.adoc

@@ -6,9 +6,11 @@
 [role="_abstract"]
 The email settings define how {Project} sends email notifications, including delivery method, SMTP configuration, reply addresses, and welcome email options.
 
+ifndef::foremanctl[]
 :FeatureName: The `sendmail` command
 :FeatureAlternative: an SMTP service
 include::snip_deprecated-feature.adoc[]
+endif::[]
 
 [cols="30%,30%,40%",options="header"]
 |====
@@ -30,8 +32,10 @@ endif::[]
 | *SMTP username* | | Username to use to authenticate, if required.
 | *SMTP password* | \\***** | Password to use to authenticate, if required.
 | *SMTP authentication* | none | Specify authentication type, if required.
+ifndef::foremanctl[]
 | *Sendmail arguments* | -i | Specify additional options to sendmail.
 Only used when the delivery method is set to sendmail.
 | *Sendmail location* | `/usr/sbin/sendmail` | The location of the sendmail executable.
 Only used when the delivery method is set to sendmail.
+endif::[]
 |====