incr.comp.: Remove out-dated unit test and unnecessary assertion.

src/librustc/dep_graph/graph.rs

@@ -244,9 +244,6 @@ pub fn read(&self, v: DepNode) {
             data.edges.borrow_mut().read(v);
 
             let mut current = data.current.borrow_mut();
-            debug_assert!(current.node_to_node_index.contains_key(&v),
-                          "DepKind {:?} should be pre-allocated but isn't.",
-                          v.kind);
             if let Some(&dep_node_index_new) = current.node_to_node_index.get(&v) {
                 current.read_index(dep_node_index_new);
             } else {

src/librustc_incremental/persist/fs.rs

@@ -953,52 +953,3 @@ fn test_find_source_directory_in_iter() {
              PathBuf::from("crate-dir/s-1234-0000-working")].into_iter(), &already_visited),
         None);
 }
-
-#[test]
-fn test_find_metadata_hashes_iter()
-{
-    assert_eq!(find_metadata_hashes_iter("testsvh2",
-        vec![
-            String::from("s-timestamp1-testsvh1"),
-            String::from("s-timestamp2-testsvh2"),
-            String::from("s-timestamp3-testsvh3"),
-        ].into_iter()),
-        Some(OsString::from("s-timestamp2-testsvh2"))
-    );
-
-    assert_eq!(find_metadata_hashes_iter("testsvh2",
-        vec![
-            String::from("s-timestamp1-testsvh1"),
-            String::from("s-timestamp2-testsvh2"),
-            String::from("invalid-name"),
-        ].into_iter()),
-        Some(OsString::from("s-timestamp2-testsvh2"))
-    );
-
-    assert_eq!(find_metadata_hashes_iter("testsvh2",
-        vec![
-            String::from("s-timestamp1-testsvh1"),
-            String::from("s-timestamp2-testsvh2-working"),
-            String::from("s-timestamp3-testsvh3"),
-        ].into_iter()),
-        None
-    );
-
-    assert_eq!(find_metadata_hashes_iter("testsvh1",
-        vec![
-            String::from("s-timestamp1-random1-working"),
-            String::from("s-timestamp2-random2-working"),
-            String::from("s-timestamp3-random3-working"),
-        ].into_iter()),
-        None
-    );
-
-    assert_eq!(find_metadata_hashes_iter("testsvh2",
-        vec![
-            String::from("timestamp1-testsvh2"),
-            String::from("timestamp2-testsvh2"),
-            String::from("timestamp3-testsvh2"),
-        ].into_iter()),
-        None
-    );
-}