Removes ntp from dependencies and behave as there is always -N option

Addresses: https://pagure.io/freeipa/issue/7024
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

freeipa.spec.in

@@ -337,7 +337,6 @@ Requires(post): krb5-server >= %{krb5_version}
 Requires(post): krb5-server >= %{krb5_base_version}, krb5-server < %{krb5_base_version}.100
 Requires: krb5-pkinit-openssl >= %{krb5_version}
 Requires: cyrus-sasl-gssapi%{?_isa}
-Requires: ntp
 Requires: httpd >= 2.4.6-31
 %if 0%{with_python3}
 Requires(preun): python3
@@ -590,7 +589,6 @@ Requires: python2-ldap >= %{python2_ldap_version}
 Requires: python2-sssdconfig
 %endif
 Requires: cyrus-sasl-gssapi%{?_isa}
-Requires: ntp
 Requires: krb5-workstation >= %{krb5_version}
 Requires: authconfig
 Requires: curl
@@ -1233,15 +1231,6 @@ if [ $1 -gt 1 ] ; then
         fi
     fi
 
-    if [ -f '/etc/sysconfig/ntpd' -a $restore -ge 2 ]; then
-        if grep -E -q 'OPTIONS=.*-u ntp:ntp' /etc/sysconfig/ntpd 2>/dev/null; then
-            sed -r '/OPTIONS=/ { s/\s+-u ntp:ntp\s+/ /; s/\s*-u ntp:ntp\s*// }' /etc/sysconfig/ntpd >/etc/sysconfig/ntpd.ipanew
-            mv -Z /etc/sysconfig/ntpd.ipanew /etc/sysconfig/ntpd
-
-            /bin/systemctl condrestart ntpd.service 2>&1 || :
-        fi
-    fi
-
     if [ $restore -ge 2 ]; then
         %{python} -c 'from ipaclient.install.client import update_ipa_nssdb; update_ipa_nssdb()' >/var/log/ipaupgrade.log 2>&1
     fi

ipaclient/install/client.py

@@ -3462,7 +3462,7 @@ class ClientInstallInterface(hostname_.HostNameInstallInterface,
     ntp_servers = enroll_only(ntp_servers)
 
     no_ntp = knob(
-        None,
+        None, True,
         description="do not configure ntp",
         cli_names=[None, '-N'],
     )