Return raw SkyValue instead of wrapped ValueWithMetadata.

--
MOS_MIGRATED_REVID=101377320
diff --git a/src/main/java/com/google/devtools/build/skyframe/InMemoryNodeEntry.java b/src/main/java/com/google/devtools/build/skyframe/InMemoryNodeEntry.java
index 4c19c8f..a47626d 100644
--- a/src/main/java/com/google/devtools/build/skyframe/InMemoryNodeEntry.java
+++ b/src/main/java/com/google/devtools/build/skyframe/InMemoryNodeEntry.java
@@ -156,9 +156,9 @@
   }
 
   @Override
-  public synchronized ValueWithMetadata getValueWithMetadata() {
+  public synchronized SkyValue getValueMaybeWithMetadata() {
     Preconditions.checkState(isDone(), "no value until done: %s", this);
-    return ValueWithMetadata.wrapWithMetadata(value);
+    return value;
   }
 
   @Override