Remove unused visapp in Signal

EtienneCmb · EtienneCmb · commit 768d98e63ff0 · 2017-11-02T15:59:10.000+01:00
diff --git a/visbrain/signal/signal.py b/visbrain/signal/signal.py
@@ -2,7 +2,6 @@
 import os
 import numpy as np
 
-import vispy.app as visapp
 import vispy.scene.cameras as viscam
 
 from .ui_elements import UiElements, UiInit
