example - python useless import library removed

python/protocol1_0/bulk_read.py

python/protocol1_0/factory_reset.py

python/protocol1_0/multi_port.py

python/protocol1_0/ping.py

python/protocol1_0/read_write.py

python/protocol1_0/sync_write.py

python/protocol2_0/broadcast_ping.py

python/protocol2_0/bulk_read_write.py

python/protocol2_0/factory_reset.py

python/protocol2_0/indirect_address.py

python/protocol2_0/multi_port.py

python/protocol2_0/ping.py

python/protocol2_0/read_write.py

python/protocol2_0/rebooting.py

python/protocol2_0/sync_read_write.py

python/protocol_combined/protocol_combined.py