Revert "tests: re-add firefox e2e tests"

This reverts commit a60f6e426f.

tests/e2e/utils.py

@@ -21,6 +21,7 @@ from selenium.common.exceptions import (
     WebDriverException,
 )
 from selenium.webdriver.common.by import By
+from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
 from selenium.webdriver.common.keys import Keys
 from selenium.webdriver.remote.webdriver import WebDriver
 from selenium.webdriver.remote.webelement import WebElement
@@ -32,8 +33,6 @@ from authentik.core.models import User
 from authentik.managed.manager import ObjectManager
 
 RETRIES = int(environ.get("RETRIES", "5"))
-BROWSER_NAME = environ.get("BROWSER", "chrome")
-
 
 # pylint: disable=invalid-name
 def USER() -> User:  # noqa
@@ -89,11 +88,7 @@ class SeleniumTestCase(StaticLiveServerTestCase):
     def _get_driver(self) -> WebDriver:
         return webdriver.Remote(
             command_executor="http://localhost:4444/wd/hub",
-            desired_capabilities={
-                "browserName": BROWSER_NAME,
-                "version": "",
-                "platform": "ANY",
-            }
+            desired_capabilities=DesiredCapabilities.CHROME,
         )
 
     def tearDown(self):