minimize default configuration

Instead of listing all options with their defaults in the default
ptp4l.conf, provide a minimal ptp4l.conf intended for a client-only
operation and refer to the ptp4l man page and examples in
/usr/share/doc/linuxptp/configs.

Also, remove ntpd-specific configuration from default timemaster.conf.
The original ntpd supported by timemaster is no longer packaged in
Fedora.

linuxptp.spec

@@ -15,6 +15,7 @@ Source1:	phc2sys.service
 Source2:	ptp4l.service
 Source3:	timemaster.service
 Source4:	timemaster.conf
+Source5:	ptp4l.conf
 # external test suite
 Source10:	https://github.com/mlichvar/linuxptp-testsuite/archive/%{testsuite_ver}/linuxptp-testsuite-%{testsuite_ver}.tar.gz
 # simulator for test suite
@@ -49,11 +50,10 @@ mv clknetsim-%{clknetsim_ver}* testsuite/clknetsim
 %makeinstall
 
 mkdir -p $RPM_BUILD_ROOT{%{_sysconfdir}/sysconfig,%{_unitdir},%{_mandir}/man5}
-install -m 644 -p configs/default.cfg $RPM_BUILD_ROOT%{_sysconfdir}/ptp4l.conf
 install -m 644 -p %{SOURCE1} %{SOURCE2} %{SOURCE3} $RPM_BUILD_ROOT%{_unitdir}
-install -m 644 -p %{SOURCE4} $RPM_BUILD_ROOT%{_sysconfdir}
+install -m 644 -p %{SOURCE4} %{SOURCE5} $RPM_BUILD_ROOT%{_sysconfdir}
 
-echo 'OPTIONS="-f /etc/ptp4l.conf -i eth0"' > \
+echo 'OPTIONS="-f /etc/ptp4l.conf"' > \
 	$RPM_BUILD_ROOT%{_sysconfdir}/sysconfig/ptp4l
 echo 'OPTIONS="-a -r"' > $RPM_BUILD_ROOT%{_sysconfdir}/sysconfig/phc2sys
 

ptp4l.conf

@@ -0,0 +1,14 @@
+# For more information about this file, see the ptp4l(8) man page.
+# Examples are available in /usr/share/doc/linuxptp/configs.
+
+[global]
+domainNumber		0
+slaveOnly		1
+time_stamping		hardware
+tx_timestamp_timeout	1
+logging_level		6
+summary_interval	0
+
+[eth0]
+network_transport	UDPv4
+hybrid_e2e		0

timemaster.conf

@@ -14,18 +14,11 @@ ntp_program chronyd
 [chrony.conf]
 include /etc/chrony.conf
 
-[ntp.conf]
-includefile /etc/ntp.conf
-
 [ptp4l.conf]
 
 [chronyd]
 path /usr/sbin/chronyd
 
-[ntpd]
-path /usr/sbin/ntpd
-options -u ntp:ntp -g
-
 [phc2sys]
 path /usr/sbin/phc2sys