remove webdriver-manager

I think this was really just a misunderstanding of the cimg CI images

dash/testing/browser.py

@@ -20,10 +20,6 @@
     MoveTargetOutOfBoundsException,
 )
 
-from webdriver_manager.chrome import ChromeDriverManager
-from webdriver_manager.utils import ChromeType
-from webdriver_manager.firefox import GeckoDriverManager
-
 from dash.testing.wait import text_to_equal, style_to_equal, contains_text, until
 from dash.testing.dash_page import DashPageMixin
 from dash.testing.errors import DashAppLoadingError, BrowserError, TestingTimeoutError
@@ -477,11 +473,7 @@ def _get_chrome(self):
                 desired_capabilities=capabilities,
             )
             if self._remote
-            else webdriver.Chrome(
-                ChromeDriverManager(chrome_type=ChromeType.GOOGLE).install(),
-                options=options,
-                desired_capabilities=capabilities,
-            )
+            else webdriver.Chrome(options=options, desired_capabilities=capabilities)
         )
 
         # https://bugs.chromium.org/p/chromium/issues/detail?id=696481
@@ -524,10 +516,7 @@ def _get_firefox(self):
             )
             if self._remote
             else webdriver.Firefox(
-                executable_path=GeckoDriverManager().install(),
-                firefox_profile=fp,
-                options=options,
-                capabilities=capabilities,
+                firefox_profile=fp, options=options, capabilities=capabilities
             )
         )
 

requires-testing.txt

@@ -7,4 +7,3 @@ pytest>=6.0.2
 requests[security]>=2.21.0
 selenium>=3.141.0
 waitress>=1.4.4
-webdriver-manager>=3.5.1