[modules/pulseaudio] remove "warning" if "too loud"

Falls in the "meant well, but doesn't really make sense" category: When
the volume exceeds 100%, the widget was shown in "critical" state. Some
headsets, audio cards, etc. do require a high volume setting, however.
And anyhow, it's really up to the user.

fixes #913

bumblebee_status/modules/core/pulseaudio.py

@@ -253,8 +253,6 @@ class Module(core.module.Module):
     def state(self, widget):
         if self._mute:
             return ["warning", "muted"]
-        if int(self._left) > int(100):
-            return ["critical", "unmuted"]
         return ["unmuted"]