TT#26831 tests/test_check.py: ignore module level imports at top of file

Recent versions of pep8 check for this, while we are modifying
system path to load functions from check.py.  Since we need at
least the os and sys modules for modifying system path and being
able to run `from check import ...` let's ignore this problem for
now.

Change-Id: Ia9f3ea2c67c3a720896f1c92031544ac7e688025

tests/test_check.py

@@ -25,9 +25,9 @@ import unittest
 import re
 lib_path = os.path.abspath('bin')
 sys.path.append(lib_path)
-from check import check_sip, check_sip_out
+from check import check_sip, check_sip_out  # noqa
-from check import XAvp, Test, check_flow, check_flow_vars
+from check import XAvp, Test, check_flow, check_flow_vars  # noqa
-from check import load_json, load_yaml
+from check import load_json, load_yaml  # noqa
 
 not_ok = re.compile('^not ok.*', re.MULTILINE)