Remove an ash reference from UserManagerScreenHandler.

This is used for the "manage people" bubble accessible from the avatar
menu. It doesn't compile on Chrome OS so the USE_ASH blocks are
obsolete.

The JS is shared with the Chrome OS login screen, which still uses
kKeyCanRemove, so we can't delete the flag altogether.

Bug: 770866
Change-Id: I55f63800f98e28ebd9358812c3b634b65041a904
Reviewed-on: https://chromium-review.googlesource.com/695944Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505814}

chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

@@ -69,10 +69,6 @@
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_util.h"
 
-#if defined(USE_ASH)
-#include "ash/shell.h"  // nogncheck
-#endif
-
 namespace {
 // User dictionary keys.
 const char kKeyUsername[] = "username";
@@ -858,12 +854,6 @@ void UserManagerScreenHandler::SendUserList() {
           GetAllProfilesAttributesSortedByName();
   user_auth_type_map_.clear();
 
-  // Profile deletion is not allowed in Metro mode.
-  bool can_remove = true;
-#if defined(USE_ASH)
-  can_remove = !ash::Shell::HasInstance();
-#endif
-
   for (const ProfileAttributesEntry* entry : entries) {
     // Don't show profiles still in the middle of being set up as new legacy
     // supervised users.
@@ -887,7 +877,7 @@ void UserManagerScreenHandler::SendUserList() {
     profile_value->SetBoolean(kKeyHasLocalCreds,
                               !entry->GetLocalAuthCredentials().empty());
     profile_value->SetBoolean(kKeyIsOwner, false);
-    profile_value->SetBoolean(kKeyCanRemove, can_remove);
+    profile_value->SetBoolean(kKeyCanRemove, true);
     profile_value->SetBoolean(kKeyIsDesktop, true);
     profile_value->SetString(kKeyAvatarUrl, GetAvatarImage(entry));