Due to the way we load plugins, internally to Python there can be issues when
the debug strategy is loaded after the linear strategy. To work around this,
we're changing the import line for the linear strategy to avoid the problem.
Related to #16825
* Remove workaround for fixed bug.
The bug where PluginLoader required objects to directly inherit from
base_classes has been fixed. Remove workaround from this strategy
plugin Also switched to using super so that we don't have to modify
all of hte code anytime something like that happens.
* These should be to_uniocde because they're being sent to display()
James Cammarata
Toshio Kuratomi
Kishin Yagami