[#2743] Only display track event delete warning dialog if more than 1.
[#2743] Only display track event delete warning dialog if more than 1.

mbuttu/butter,robinparadise/videoquizmaker,robinparadise/videoquizmaker,BBGInnovate/butter,mbuttu/butter,mbuttu/butter,BBGInnovate/butter,mozilla/butter,mozilla/butter