Since the scripts are intended to be used as systemd services, there's
no need in separate logging via syslog: systemd will take care of
properly collecting and storing script output. Hence we can drop extra
options and function parameters.
Change-Id: Ifcad1877d45d43b3a2e617775a1c9b256e190591
Related: SYS#4399
systemd errors due to executabl path not being absolute:
systemd[1]: [/lib/systemd/system/osmo-ctrl2cgi.service:7] Executable path is not absolute, ignoring: python3 /usr/bin/ctrl2cgi.py
systemd[1]: osmo-ctrl2cgi.service: Service lacks both ExecStart= and ExecStop= setting. Refusing.
Change-Id: I8e3d695951fb36d53c112b6dce10a275b757ca5a