Remove outdated comment

--
MOS_MIGRATED_REVID=128510907
diff --git a/src/main/java/com/google/devtools/build/lib/packages/Attribute.java b/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
index 5052115..5277aef 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
@@ -117,10 +117,7 @@
     }
   }
 
-  /**
-   * A RuleAspect that just wraps a pre-existing Aspect that doesn't vary with the Rule.
-   * For instance, this may come from a DeserializedSkylarkAspect.
-   */
+  /** A RuleAspect that just wraps a pre-existing Aspect that doesn't vary with the Rule. */
   private static class PredefinedRuleAspect extends RuleAspect<AspectClass> {
     private Aspect aspect;