[dune-pdelab] How to uninstall dune-pdelab

[Mahmoud Atef Mahmoud Mohamed Aboelseoud S277151]

Hello,

Please I built by mistake dune-pdelab version 2.0 and my dune version is 
2.7.1
I have a lock sign on the dune-pdelab folder. How to uninstall it please 
? I want to uninstall this one and install the new version instead.


Best Regards,

Mahmoud Atef