[systemd][supervise] remove StateDirectory options (bug en readonly)

config/pyheatpump_supervise.service

 
 [Service]
 Type=simple
-StateDirectory=pyheatpump
-StateDirectoryMode=0700
 WorkingDirectory=/var/lib/pyheatpump
 Environment="LOGLEVEL=INFO"
 ExecStartPre=/opt/pyHeatpump/config/pre-exec.sh