VR: Remove unnecessary binding

Visibility is already stablished by parent element.

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:linux_vr;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I8c8494a5137cc09b3ef7eab355c8016c2b14f541
Reviewed-on: https://chromium-review.googlesource.com/1140506
Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Commit-Queue: Aldo Culquicondor <acondor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576168}
1 file changed