Remove an unused variable and import
diff --git a/tools/wptrunner/wptrunner/browsers/firefox.py b/tools/wptrunner/wptrunner/browsers/firefox.py
index 1c6552e..46d45e6 100644
--- a/tools/wptrunner/wptrunner/browsers/firefox.py
+++ b/tools/wptrunner/wptrunner/browsers/firefox.py
@@ -2,7 +2,6 @@
 
 import json
 import os
-import platform
 import re
 import signal
 import subprocess
diff --git a/tools/wptrunner/wptrunner/browsers/firefox_android.py b/tools/wptrunner/wptrunner/browsers/firefox_android.py
index 55477b2..18c3c6b 100644
--- a/tools/wptrunner/wptrunner/browsers/firefox_android.py
+++ b/tools/wptrunner/wptrunner/browsers/firefox_android.py
@@ -91,7 +91,6 @@
 
 def run_info_extras(logger, **kwargs):
     rv = fx_run_info_extras(logger, **kwargs)
-    package = kwargs["package_name"]
     rv.update({"headless": False})
 
     if kwargs["browser_version"] is None: