Revert "Dartium JS Interop enabled."

tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate

Index: tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate
diff --git a/tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate b/tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate
index 9804405eb0bfaa62e25a3d26bcd5bf7245084219..62dd7e9afdcabd8f6fa5078546358780c6521298 100644
--- a/tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate
+++ b/tools/dom/templates/html/dartium/indexed_db_dartium.darttemplate
@@ -69,7 +69,7 @@
  * and where both the keys and the values are strings.
  *
  * * [dart:web_sql]—a database that can be queried with SQL.
- *
+ * 
  * For a tutorial about using the indexed_db library with Dart,
  * check out
  * [Use IndexedDB](http://www.dartlang.org/docs/tutorials/indexeddb/).
@@ -84,7 +84,6 @@ import 'dart:html';
 import 'dart:html_common';
 import 'dart:nativewrappers';
 import 'dart:_blink' as _blink;
-import 'dart:js' as js;
 
 $!GENERATED_DART_FILES