removing thunderbird and Terminal from panel

xfce-settings/etcskel/.config/xfce4/panel/launcher-6/13015098300.desktop

-[Desktop Entry]
-Type=Application
-Name=Mozilla Thunderbird
-Comment=Почтовый клиент
-Icon=thunderbird
-Exec=exo-open --launch MailReader
-Path=
-Terminal=false
-StartupNotify=true
-

xfce-settings/etcskel/.config/xfce4/panel/launcher-8/13015098300.desktop

-[Desktop Entry]
-Type=Application
-Name=Терминал
-Comment=Эмулятор терминала для X
-Icon=utilities-terminal
-Exec=exo-open --launch TerminalEmulator
-Path=
-Terminal=false
-StartupNotify=true
-