Using lgtm.com and fixing found alerts (#1452)

* lgtm in readme, and mac nui fixes

* call super inits in radars

* unused imports, dup lines

* more radars, more unused imports

* pass CP into RadarInterfaceBase

* more fixups

* unused imports

* delete unused lines

* ugh, new unused import

Co-authored-by: George Hotz <geohot@gmail.com>

tools/sim/bridge.py

@@ -1,7 +1,5 @@
 #!/usr/bin/env python3
-import carla
-import os
-import time, termios, tty, sys
+import time
 import math
 import atexit
 import numpy as np
@@ -9,7 +7,6 @@ import threading
 import random
 import cereal.messaging as messaging
 import argparse
-import queue
 from common.params import Params
 from common.realtime import Ratekeeper
 from lib.can import can_function, sendcan_function

tools/sim/lib/can.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-import time
 import cereal.messaging as messaging
 from opendbc.can.parser import CANParser
 from opendbc.can.packer import CANPacker
@@ -92,13 +91,3 @@ def sendcan_function(sendcan):
 
   return (gas, brake, steer_torque)
 
-if __name__ == "__main__":
-  pm = messaging.PubMaster(['can'])
-  sendcan = messaging.sub_sock('sendcan')
-  idx = 0
-  while 1:
-    sendcan_function(sendcan)
-    can_function(pm, 10.0, idx)
-    time.sleep(0.01)
-    idx += 1
-