ReviewerManager: Fix build error

The breakage was introduced in merge commit Ie7d6439bf27. Mention of
ReviewDb was missed to be removed after merging to stable-3.0 branch.

Also avoid importing Account.Id class directly.

Change-Id: Ie48ceb78540fdb9a91fd2c35fa4fe2ec1424496b
diff --git a/owners-autoassign/src/main/java/com/googlesource/gerrit/owners/common/ReviewerManager.java b/owners-autoassign/src/main/java/com/googlesource/gerrit/owners/common/ReviewerManager.java
index 3634cbe..0a3f6f9 100644
--- a/owners-autoassign/src/main/java/com/googlesource/gerrit/owners/common/ReviewerManager.java
+++ b/owners-autoassign/src/main/java/com/googlesource/gerrit/owners/common/ReviewerManager.java
@@ -23,10 +23,8 @@
 import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.reviewdb.client.Account;
-import com.google.gerrit.reviewdb.client.Account.Id;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
-import com.google.gerrit.reviewdb.server.ReviewDb;
 import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.permissions.ChangePermission;
 import com.google.gerrit.server.permissions.PermissionBackend;
@@ -75,7 +73,7 @@
         ReviewInput in = new ReviewInput();
         in.reviewers = new ArrayList<>(reviewers.size());
         for (Account.Id account : reviewers) {
-          if (isVisibleTo(ctx.getReviewDbProvider().get(), changeInfo, account)) {
+          if (isVisibleTo(changeInfo, account)) {
             AddReviewerInput addReviewerInput = new AddReviewerInput();
             addReviewerInput.reviewer = account.toString();
             in.reviewers.add(addReviewerInput);
@@ -94,10 +92,10 @@
     }
   }
 
-  private boolean isVisibleTo(ReviewDb reviewDb, ChangeInfo changeInfo, Id account) {
+  private boolean isVisibleTo(ChangeInfo changeInfo, Account.Id account) {
     ChangeData changeData =
         changeDataFactory.create(
-            reviewDb, new Project.NameKey(changeInfo.project), new Change.Id(changeInfo._number));
+            new Project.NameKey(changeInfo.project), new Change.Id(changeInfo._number));
     return permissionBackend
         .user(userFactory.create(account))
         .change(changeData)