Fix LGTM alerts

device/accton/x86_64-accton_minipack-r0/sonic_platform/event.py

@@ -3,7 +3,6 @@
     from .helper import APIHelper
     from sonic_py_common.logger import Logger
     from minipack.fpgautil import FpgaUtil
-    import fbfpgaio
 except ImportError as e:
     raise ImportError(repr(e) + " - required module not found")
 

device/accton/x86_64-accton_minipack-r0/sonic_platform/helper.py

@@ -1,8 +1,5 @@
 #!/usr/bin/env python3
 import os
-import io
-import fcntl
-import termios
 import struct
 import subprocess
 from mmap import *

device/accton/x86_64-accton_minipack-r0/sonic_platform/thermal.py

@@ -5,9 +5,6 @@
 # provides the thermal device status which are available in the platform
 #
 #############################################################################
-
-import os
-import os.path
 import glob
 
 try:

platform/broadcom/sonic-platform-modules-accton/minipack/classes/fpgautil.py

@@ -18,21 +18,12 @@
 #    5/29/2019:  Jostar create for minipack
 # -----------------------------------------------------------
 try:
-    import os
-    import sys, getopt
-    import subprocess
-    import imp
-    import logging
-    import logging.config
-    import logging.handlers
-    import types
+    import sys
     import time  # this is only being used as part of the example
-    import traceback
     import fbfpgaio
     import re
     import time
     from select import select
-    #from ctypes import fbfpgaio 
 
 except ImportError as e:
     raise ImportError('%s - required module not found' % str(e))

platform/broadcom/sonic-platform-modules-accton/minipack/fpga_setup.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-import os
 import sys
 from setuptools import setup, Extension
 os.listdir