examples: remove unused imports

Author: peterbarker

examples/apmsetrate.py

@@ -6,7 +6,7 @@
 from __future__ import print_function
 from builtins import range
 
-import sys, struct, time, os
+import sys
 
 from argparse import ArgumentParser
 parser = ArgumentParser(description=__doc__)

examples/mav_accel.py

@@ -5,8 +5,6 @@
 '''
 from __future__ import print_function
 
-import sys, time, os
-
 from argparse import ArgumentParser
 parser = ArgumentParser()
 parser.add_argument("--no-timestamps", dest="notimestamps", action='store_true', help="Log doesn't have timestamps")

examples/mavtcpsniff.py

@@ -15,7 +15,7 @@
 '''
 from __future__ import print_function
 
-import sys, time, os, struct
+import time
 
 from pymavlink import mavutil
 #from pymavlink import mavlinkv10 as mavlink

examples/mavtest.py

@@ -2,7 +2,6 @@
 
 from __future__ import print_function
 from builtins import object
-import sys, os
 
 from pymavlink.dialects.v10 import ardupilotmega as mavlink1
 from pymavlink.dialects.v20 import ardupilotmega as mavlink2

examples/wptogpx.py

@@ -7,14 +7,14 @@
 from __future__ import print_function
 from builtins import range
 
-import sys, struct, time, os
+import time
 
 from argparse import ArgumentParser
 parser = ArgumentParser(description=__doc__)
 parser.add_argument("wpfiles", metavar="WP_FILE", nargs="+")
 args = parser.parse_args()
 
-from pymavlink import mavutil, mavwp
+from pymavlink import mavwp
 
 
 def wp_to_gpx(infilename, outfilename):