Refactoring: makes the code simpler by deleting Metadata and InputArtifactData.

(minor) ActionFS now implements MetadataProvider.getInput

PiperOrigin-RevId: 199575194
diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/FilesystemValueCheckerTest.java b/src/test/java/com/google/devtools/build/lib/skyframe/FilesystemValueCheckerTest.java
index f0112d4..385b738 100644
--- a/src/test/java/com/google/devtools/build/lib/skyframe/FilesystemValueCheckerTest.java
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/FilesystemValueCheckerTest.java
@@ -30,6 +30,9 @@
 import com.google.devtools.build.lib.actions.Artifact.TreeFileArtifact;
 import com.google.devtools.build.lib.actions.ArtifactOwner;
 import com.google.devtools.build.lib.actions.ArtifactRoot;
+import com.google.devtools.build.lib.actions.FileArtifactValue;
+import com.google.devtools.build.lib.actions.FileStateValue;
+import com.google.devtools.build.lib.actions.FileValue;
 import com.google.devtools.build.lib.actions.util.TestAction;
 import com.google.devtools.build.lib.analysis.BlazeDirectories;
 import com.google.devtools.build.lib.analysis.ServerDirectories;
@@ -117,9 +120,11 @@
             TestConstants.PRODUCT_NAME);
     ExternalFilesHelper externalFilesHelper = ExternalFilesHelper.createForTesting(
         pkgLocator, ExternalFileAction.DEPEND_ON_EXTERNAL_PKG_FOR_EXTERNAL_REPO_PATHS, directories);
-    skyFunctions.put(SkyFunctions.FILE_STATE, new FileStateFunction(
-        new AtomicReference<TimestampGranularityMonitor>(), externalFilesHelper));
-    skyFunctions.put(SkyFunctions.FILE, new FileFunction(pkgLocator));
+    skyFunctions.put(
+        FileStateValue.FILE_STATE,
+        new FileStateFunction(
+            new AtomicReference<TimestampGranularityMonitor>(), externalFilesHelper));
+    skyFunctions.put(FileValue.FILE, new FileFunction(pkgLocator));
     skyFunctions.put(
         SkyFunctions.FILE_SYMLINK_CYCLE_UNIQUENESS, new FileSymlinkCycleUniquenessFunction());
     skyFunctions.put(