[Exec] remove print statement from execute_custom_node

src/finn/core/execute_custom_node.py

@@ -8,17 +8,13 @@ def execute_custom_node(node, context, graph):
     Input/output provided via context."""
 
     if node.op_type == "MultiThreshold":
-
         # save inputs
         v = context[node.input[0]]
         thresholds = context[node.input[1]]
-
         # calculate output
         output = multiThresh.execute(v, thresholds)
-
         # setting context according to output
         context[node.output[0]] = output
-        print(output)
 
     else:
         # exception if op_type is not supported