Remove set no-parent from per-file PermissionContext OWNERS

In https://codereview.chromium.org/2969393002 per-file OWNERS were added
for PermissionContextBase subclasses, as they would benefit from
approval by permissions owners.

In https://codereview.chromium.org/2791623004/#msg148 jochen raised the
concern that set no-parent would interfere with large-scale
refactorings. Remove set no-parent declarations for now until we figure
out what the best way forward is.

Change-Id: I13b0fdec6b259e5db3bebf9dda425497b885af6f
Tbr: jochen@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/598662
Commit-Queue: Raymes Khoury <raymes@chromium.org>
Reviewed-by: Timothy Loh <timloh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491668}

chrome/browser/background_sync/OWNERS

 iclelland@chromium.org
 jkarlin@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Blink>BackgroundSync

chrome/browser/generic_sensor/OWNERS

 file://services/device/generic_sensor/OWNERS
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Blink>Sensor

chrome/browser/geolocation/OWNERS

@@ -2,7 +2,6 @@ benwells@chromium.org
 raymes@chromium.org
 timvolodine@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Internals>Permissions

chrome/browser/media/OWNERS

@@ -13,7 +13,6 @@ per-file media_engagement*=mlamouri@chromium.org
 per-file *.mojom=set noparent
 per-file *.mojom=file://ipc/SECURITY_OWNERS
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Blink>Media

chrome/browser/media/webrtc/OWNERS

@@ -15,7 +15,6 @@ per-file media_permission*=raymes@chromium.org
 # For WebRTC desktop capturer related changes only
 per-file native_desktop_media_list*=zijiehe@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Blink>WebRTC

chrome/browser/notifications/OWNERS

@@ -8,7 +8,6 @@ yoshiki@chromium.org
 # Mac files
 per-file *_mac*=rsesek@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # TEAM: platform-capabilities@chromium.org

chrome/browser/plugins/OWNERS

@@ -3,5 +3,4 @@ bauerb@chromium.org
 per-file flash*=tommycli@chromium.org
 per-file plugin_power_saver*=tommycli@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS

chrome/browser/storage/OWNERS

@@ -4,7 +4,6 @@ michaeln@chromium.org
 
 per-file storage_info_fetcher.*=finnur@chromium.org
 
-per-file *permission_context*=set noparent
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # TEAM: storage-dev@chromium.org