Suppress deprecation warnings from ServletScopes

Yes, these are deprecated, but they have been working fine for us for
a long time, and it's not obvious that the suggested replacement will
work.

Change-Id: I1ef773b160ba3aef8fa6fcf509c03d88c6217f1a

gerrit-server/src/main/java/com/google/gerrit/server/util/GuiceRequestScopePropagator.java

@@ -52,6 +52,10 @@ public class GuiceRequestScopePropagator extends RequestScopePropagator {
   /**
    * @see RequestScopePropagator#wrap(Callable)
    */
+  // ServletScopes#continueRequest is deprecated, but it's not obvious their
+  // recommended replacement is an appropriate drop-in solution; see
+  // https://gerrit-review.googlesource.com/83971
+  @SuppressWarnings("deprecation")
   @Override
   protected <T> Callable<T> wrapImpl(Callable<T> callable) {
     Map<Key<?>, Object> seedMap = new HashMap<>();

gerrit-server/src/main/java/com/google/gerrit/server/util/RequestScopePropagator.java

@@ -85,6 +85,7 @@ public abstract class RequestScopePropagator {
    * @param callable the Callable to wrap.
    * @return a new Callable which will execute in the current request scope.
    */
+  @SuppressWarnings("javadoc") // See GuiceRequestScopePropagator#wrapImpl
   public final <T> Callable<T> wrap(final Callable<T> callable) {
     final RequestContext callerContext = checkNotNull(local.getContext());
     final Callable<T> wrapped =