Do not log GetCapacity requests

These are run periodically and not particularly interesting.

Author: semekh

bd2fs.py

@@ -211,7 +211,6 @@ def CreateVolume(self, request, context):
     def DeleteVolume(self, request, context):
         return self.bds.DeleteVolume(request, context)
 
-    @log_grpc_request
     def GetCapacity(self, request, context):
         return self.bds.GetCapacity(request, context)
 

rawfile_servicer.py

@@ -222,7 +222,6 @@ def DeleteVolume(self, request, context):
                 raise exc
         return csi_pb2.DeleteVolumeResponse()
 
-    @log_grpc_request
     def GetCapacity(self, request, context):
         return csi_pb2.GetCapacityResponse(
             available_capacity=get_capacity(),