Better way to hide audio widget

constants.py

@@ -4,15 +4,6 @@ import os.path
 from enum import IntEnum
 
 
-class MainTabs(IntEnum):
-    """The main tabs indeces."""
-
-    SIGNAL = 0
-    FILTERS = 1
-    GFD = 2
-    FORECAST = 3
-
-
 class Ftype:
     """Container class to differentiate between frequency and band.