Breaking Change: Remove unused overload of AbstractMessageLite.addAll that worked on a Collection instead of a List.

PiperOrigin-RevId: 597869849

java/core/src/main/java/com/google/protobuf/AbstractMessageLite.java

@@ -113,12 +113,6 @@ public abstract class AbstractMessageLite<
     }
   }
 
-  // For binary compatibility
-  @Deprecated
-  protected static <T> void addAll(final Iterable<T> values, final Collection<? super T> list) {
-    Builder.addAll(values, (List) list);
-  }
-
   protected static <T> void addAll(final Iterable<T> values, final List<? super T> list) {
     Builder.addAll(values, list);
   }