Remove unused import

Author: jman-sketch

py/selenium/webdriver/remote/network.py

@@ -14,8 +14,6 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
-from dataclasses import fields
-
 import trio
 
 from selenium.webdriver.common.bidi import network