Drop Filesets from artifact groups, as we can never construct a valid pointer to them.

PiperOrigin-RevId: 227165800
diff --git a/src/main/java/com/google/devtools/build/lib/vfs/OutputService.java b/src/main/java/com/google/devtools/build/lib/vfs/OutputService.java
index 9452dae..02c68cf 100644
--- a/src/main/java/com/google/devtools/build/lib/vfs/OutputService.java
+++ b/src/main/java/com/google/devtools/build/lib/vfs/OutputService.java
@@ -159,6 +159,7 @@
 
   default ArtifactPathResolver createPathResolverForArtifactValues(
       PathFragment execRoot,
+      String relativeOutputPath,
       FileSystem fileSystem,
       ImmutableList<Root> pathEntries,
       ActionInputMap actionInputMap,