Removed exception catching that fails in python <3.6 (#301)
Removed exception catching that fails in python <3.6 (#301)

* Removed exception catching that fails in python <3.6

* fixed blind exception for Elrama

DiCarloLab-Delft/PycQED_py3,DiCarloLab-Delft/PycQED_py3,QudevETH/PycQED_py3,DiCarloLab-Delft/PycQED_py3