Updating isolated scripts to ignore chartjson results dir flag.

testing/scripts/run_telemetry_as_googletest.py

Index: testing/scripts/run_telemetry_as_googletest.py
diff --git a/testing/scripts/run_telemetry_as_googletest.py b/testing/scripts/run_telemetry_as_googletest.py
index 71550a4181ed55b9b80beb1980fae16f1bab14b1..82491845dc6273f5cfd88b806b7eccb104583fae 100755
--- a/testing/scripts/run_telemetry_as_googletest.py
+++ b/testing/scripts/run_telemetry_as_googletest.py
@@ -37,11 +37,16 @@ def main():
   parser.add_argument(
       '--isolated-script-test-output', type=argparse.FileType('w'),
       required=True)
-  parser.add_argument(
-    '--isolated-script-test-chartjson-output', type=argparse.FileType('w'),
-    required=False)
   parser.add_argument('--xvfb', help='Start xvfb.', action='store_true')
   args, rest_args = parser.parse_known_args()
+  # Remove the chartjson extra arg until this script cares about chartjson
+  # results from telemetry
+  index = 0
+  for arg in rest_args:
+    if '--isolated-script-test-chartjson-output' in arg:
+      rest_args.pop(index)
+      break
+    index += 1
 
   xvfb_proc = None
   openbox_proc = None