Remove from the sh because the setup.py has it.

Author: dannystaple

setup_arm.sh

@@ -1,7 +1,6 @@
 #!/bin/env bash
 # Raspbian setup
 sudo apt-get install python3-libusb python3-pip
-pip3 install pyusb
 pip3 install git+https://github.com/orionrobots/python_usb_robot_arm
 sudo cat <<END
 SUBSYSTEM=="usb", ATTR{idVendor}=="1267", ATTR{idProduct}=="0000", MODE:="0666"