Clean up mojo pref service capabilities for ash

Ash runs in the browser process and directly uses pref objects. Since
it doesn't use the mojo preferences service, remove the capability
references.

Bug: none
Change-Id: If15c14020c33dcbb5c01b463b842df7a885c3c74
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1648537Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
Auto-Submit: James Cook <jamescook@chromium.org>
Cr-Commit-Position: refs/heads/master@{#667152}

ash/public/cpp/manifest.cc

@@ -63,8 +63,6 @@ const service_manager::Manifest& GetManifest() {
                                         mojom::ShelfIntegrationTestApi>())
           .RequireCapability("*", "accessibility")
           .RequireCapability("*", "app")
-          .RequireCapability(prefs::mojom::kLocalStateServiceName,
-                             "pref_client")
           .RequireCapability(content::mojom::kServiceName, "navigation")
           .RequireCapability(data_decoder::mojom::kServiceName, "image_decoder")
           .RequireCapability(viz::mojom::kVizServiceName, "ozone")

chrome/app/chrome_content_browser_overlay_manifest.cc

@@ -124,8 +124,6 @@ const service_manager::Manifest& GetChromeContentBrowserOverlayManifest() {
         // Used by ShelfTestApi and ShelfIntegrationTestApi
         .RequireCapability("ash", "test")
         .RequireCapability("ash", "display")
-        // Only used in the classic Ash case
-        .RequireCapability("ash_pref_connector", "pref_connector")
         .RequireCapability("assistant", "assistant")
         .RequireCapability("cellular_setup", "cellular_setup")
         // Only used in the classic Ash case
@@ -146,8 +144,6 @@ const service_manager::Manifest& GetChromeContentBrowserOverlayManifest() {
         .RequireCapability(image_annotation::mojom::kServiceName,
                            image_annotation::mojom::kAnnotationCapability)
         .RequireCapability("ime", "input_engine")
-        // Only used in the classic Ash case
-        .RequireCapability("local_state", "pref_client")
         .RequireCapability("media_gallery_util", "parse_media")
         .RequireCapability("mirroring", "mirroring")
         .RequireCapability("multidevice_setup", "multidevice_setup")