Revert "Moves the 'import_*.config' files in dart-sdk into a new directory"

dart.gyp

Index: dart.gyp
diff --git a/dart.gyp b/dart.gyp
index 1dbd8e05525c8adbac901456e5b3f296aa3b86a6..6bf020eda476f8dcf1dd01cadc22b2d499b91af5 100644
--- a/dart.gyp
+++ b/dart.gyp
@@ -42,11 +42,6 @@
           'action_name': 'create_sdk_py',
           'inputs': [
             '<!@(["python", "frog/scripts/list_frog_files.py", "frog"])',
-            'lib/_internal/config/import_any.config',
-            'lib/_internal/config/import_dart2js.config',
-            'lib/_internal/config/import_dartium.config',
-            'lib/_internal/config/import_frog.config',
-            'lib/_internal/config/import_vm.config',
             # TODO(dgrove) - change these to dependencies and add dom
             # dependences once issues 754 and 755 are fixed
             'lib/html/html_frog.dart',