[py] Remove unused import

Author: cgoldberg

py/test/selenium/webdriver/chrome/chrome_service_tests.py

@@ -17,7 +17,6 @@
 
 import os
 import subprocess
-import sys
 import time
 from unittest.mock import patch
 

py/test/selenium/webdriver/edge/edge_service_tests.py

@@ -17,7 +17,6 @@
 
 import os
 import subprocess
-import sys
 import time
 from unittest.mock import patch
 

py/test/unit/selenium/webdriver/virtual_authenticator/virtual_authenticator_options_tests.py

@@ -15,7 +15,6 @@
 # specific language governing permissions and limitations
 # under the License.
 
-import sys
 
 import pytest