snmp: remove extraneous blank line

Author: vincentbernat

snimpy/snmp.py

@@ -348,7 +348,6 @@ def _convert(self, value):
                 return fn(value)
         raise NotImplementedError("unable to convert {}".format(repr(value)))
 
-
     def get(self, *oids):
         """Retrieve an OID value using GET.