[Exp PyROOT] Temporarily disable tutorial
[Exp PyROOT] Temporarily disable tutorial

After the upgrade of Cppyy, an issue when deleting TPad surfaced:
depending on the order in which a TCanvas and a TPad are deleted,
a segmentation fault happens. The issue is also reproducible in
C++ and the tutorial seems to (by chance) fail only in Python3.

This is being followed by ROOT-10060. Until such issue in the
graphics is solved, the tutorial is disabled.

root-mirror/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,karies/root,karies/root,olifre/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,karies/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,olifre/root,olifre/root,root-mirror/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,karies/root,olifre/root,olifre/root,root-mirror/root,olifre/root,olifre/root