Removed ord() occurrences at lines 65, 66

[0x48piraj]

Problem : Throws TypeError: ord()

$> py duck2spark.py -i raw.bin -l 1 -f 2000 -o sketch.ino
Traceback (most recent call last):
  File "duck2spark.py", line 155, in <module>
    main(sys.argv[1:])
  File "duck2spark.py", line 140, in main
    result = generate_source(payload, init_delay=init_delay, loop_count=loop_count, loop_delay=loop_delay, blink=blink)
  File "duck2spark.py", line 65, in generate_source
    declare += str(hex(ord(payload[c]))) + ", "
TypeError: ord() expected string of length 1, but int found