rustdoc: Remove a pointer that's no longer needed

src/rustdoc/rustdoc.rs

@@ -52,7 +52,7 @@ fn test_run_passes() {
                     name: doc.topmod.name() + "two"
                     with doc.topmod.item
                 },
-                items: ~[]
+                items: []
             }
         }
     }
@@ -66,7 +66,7 @@ fn test_run_passes() {
                     name: doc.topmod.name() + "three"
                     with doc.topmod.item
                 },
-                items: ~[]
+                items: []
             }
         }
     }