Revert "toggle_help(self) is working"

Caused disrupted behaviour of the GUI

This reverts commit d18378fdbea762795e539737c315eee3fdba8101.
Revert "pile_viewer.toggle_help() added"

Caused disrupted behaviour of the GUI

This reverts commit 59eb5c9621a9e4f1105ae040711a99a624858b92.