Revert of Cross-repo recipe package system.

scripts/slave/recipe_modules/path/test_api.py

Index: scripts/slave/recipe_modules/path/test_api.py
diff --git a/scripts/slave/recipe_modules/path/test_api.py b/scripts/slave/recipe_modules/path/test_api.py
new file mode 100644
index 0000000000000000000000000000000000000000..607fe575d8fc3a66d5d113192276504cec818122
--- /dev/null
+++ b/scripts/slave/recipe_modules/path/test_api.py
@@ -0,0 +1,12 @@
+from recipe_engine import recipe_test_api
+from recipe_engine.config_types import Path, NamedBasePath
+
+class PathTestApi(recipe_test_api.RecipeTestApi):
+  @recipe_test_api.mod_test_data
+  @staticmethod
+  def exists(*paths):
+    assert all(isinstance(p, Path) for p in paths)
+    return paths
+
+  def __getitem__(self, name):
+    return Path(NamedBasePath(name))