Undeprecate a few functions that aren't going away

Change-Id: Ifd0199102a8316a9439f3ad931e6def9c8c4cc85

gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/BaseServiceImplementation.java

@@ -39,7 +39,6 @@ public class BaseServiceImplementation {
     this.currentUser = currentUser;
   }
 
-  @Deprecated
   protected Account.Id getAccountId() {
     CurrentUser u = currentUser.get();
     if (u instanceof IdentifiedUser) {
@@ -97,7 +96,6 @@ public class BaseServiceImplementation {
   }
 
   /** Exception whose cause is passed into onFailure. */
-  @Deprecated
   public static class Failure extends Exception {
     private static final long serialVersionUID = 1L;
 

gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/Change.java

@@ -370,13 +370,11 @@ public final class Change {
   }
 
   /** Legacy 32 bit integer identity for a change. */
-  @Deprecated
   public Change.Id getId() {
     return changeId;
   }
 
   /** Legacy 32 bit integer identity for a change. */
-  @Deprecated
   public int getChangeId() {
     return changeId.get();
   }

gerrit-server/src/main/java/com/google/gerrit/server/CurrentUser.java

@@ -69,7 +69,6 @@ public abstract class CurrentUser {
     return getEffectiveGroups().contains(authConfig.getBatchUsersGroup());
   }
 
-  @Deprecated
   public final boolean isAdministrator() {
     return getEffectiveGroups().contains(authConfig.getAdministratorsGroup());
   }