Remove print statements

Author: javerbukh

jdaviz/configs/cubeviz/plugins/viewers.py

@@ -232,20 +232,15 @@ def data(self, cls=None):
                 isinstance(layer_state.layer, BaseData)]
 
     def start_stream(self):
-        if hasattr(self, 'stream') and self.stream:
+        if self.stream:
             self.stream.start()
-        else:
-            print("unable to start stream")
 
     def stop_stream(self):
-        if hasattr(self, 'stream') and self.stream:
+        if self.stream:
             self.stream.stop()
-        else:
-            print("unable to stop stream")
 
     def update_cube(self, x, y):
-        if not hasattr(self, 'audified_cube') or not self.audified_cube or not hasattr(self.audified_cube, 'newsig') or not hasattr(self.audified_cube, 'sigcube'):
-            print("cube not initialized")
+        if not self.audified_cube or not hasattr(self.audified_cube, 'newsig') or not hasattr(self.audified_cube, 'sigcube'):
             return
         self.audified_cube.newsig = self.audified_cube.sigcube[:, x, y]
         self.audified_cube.cbuff = True