Add kbr and martiniss@ as OWNERs for //testing/scripts

Also removes iannucci@, since he doesn't work on these scripts anymore.

Change-Id: Id6191a752a1a22f48714f96eb767c2a92552e82b
Reviewed-on: https://chromium-review.googlesource.com/1114183
Commit-Queue: Stephen Martinis <martiniss@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#570269}

testing/scripts/OWNERS

@@ -2,15 +2,14 @@
 # and understand the implications of changing these files.
 
 dpranke@chromium.org
-iannucci@chromium.org
+kbr@chromium.org
+martiniss@chromium.org
 
 # TEAM: infra-dev@chromium.org
 # COMPONENT: Infra>Client>Chrome
 
 # Wrappers for Telemetry based tests.
-per-file run_gpu*=kbr@chromium.org
 per-file run_gpu*=nednguyen@google.com
-per-file run_telemetry*=kbr@chromium.org
 per-file run_telemetry*=nednguyen@google.com
 per-file run_telemetry*=eyaich@chromium.org
 per-file run_performance_tests*=eyaich@chromium.org