fixing lint error

Author: jowens

pandas/tests/io/test_html.py

@@ -28,7 +28,6 @@
 from pandas.io.common import URLError, urlopen, file_path_to_url
 import pandas.io.html
 from pandas.io.html import read_html
-from pandas._libs.parsers import ParserError
 
 import pandas.util.testing as tm
 from pandas.util.testing import makeCustomDataframe as mkdf, network