Remove media/filters from _NOT_CONVERTED_TO_MODERN_BIND_AND_CALLBACK

This is the list of directories excluded from presubmit checks
for base::Bind, base::Closure, and base::Callback.

Change-Id: I9e169427760a90ed06adb83b32a6a9cadc35bd88
Bug: 1007805
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2538038Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: David Bienvenu <davidbienvenu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827509}

PRESUBMIT.py

@@ -381,7 +381,6 @@ _NOT_CONVERTED_TO_MODERN_BIND_AND_CALLBACK = '|'.join((
   '^media/blink/',
   '^media/cast/',
   '^media/cdm/',
-  '^media/filters/',
   '^media/gpu/',
   '^media/mojo/',
   '^net/http/',