Remove asimjour from OWNERS lists

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: I81fca5889609d48f81b05d2394700787b6b56c44
Reviewed-on: https://chromium-review.googlesource.com/1186154Reviewed-by: Ian Vollick <vollick@chromium.org>
Commit-Queue: Amirhossein Simjour <asimjour@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585476}

chrome/android/java/src/org/chromium/chrome/browser/vr/VR_JAVA_OWNERS

-asimjour@chromium.org
 mthiesse@chromium.org
 
 # TEAM: xr-dev@chromium.org

chrome/browser/android/vr/OWNERS

-asimjour@chromium.org
 cjgrant@chromium.org
 mthiesse@chromium.org
 tiborg@chromium.org

chrome/browser/vr/OWNERS

-asimjour@chromium.org
 cjgrant@chromium.org
 mthiesse@chromium.org
 tiborg@chromium.org

third_party/gvr-android-keyboard/OWNERS

 acondor@chromium.org
-asimjour@chromium.org
 vollick@chromium.org
 
 # TEAM: xr-dev@chromium.org