[py] Remove all Python tests from .skipped-tests

Author: cgoldberg

.skipped-tests

@@ -27,11 +27,6 @@
 -//javascript/selenium-webdriver:test-chrome-service-test.js-chrome
 -//javascript/selenium-webdriver:test-firefox-options-test.js-firefox
 -//javascript/selenium-webdriver:test-lib-capabilities-test.js-chrome
--//py:test-chrome-test/selenium/webdriver/chrome/chrome_launcher_tests.py
--//py:test-chrome-test/selenium/webdriver/chrome/chrome_service_tests.py
--//py:test-chrome-test/selenium/webdriver/chrome/proxy_tests.py
--//py:test-edge-test/selenium/webdriver/edge/edge_launcher_tests.py
--//py:test-edge-test/selenium/webdriver/edge/edge_service_tests.py
 -//rb/spec/integration/selenium/webdriver/chrome:service-chrome
 -//rb/spec/integration/selenium/webdriver/chrome:service-chrome-bidi
 -//rb/spec/integration/selenium/webdriver/chrome:service-chrome-remote