Remove expected failure for tflite notebook test. (#7534)

Something in https://github.com/google/iree/pull/7501 fixed this :D
diff --git a/colab/test_notebooks.py b/colab/test_notebooks.py
index 683d15d..2de3de6 100644
--- a/colab/test_notebooks.py
+++ b/colab/test_notebooks.py
@@ -14,11 +14,7 @@
 
 NOTEBOOKS_TO_SKIP = []
 
-NOTEBOOKS_EXPECTED_TO_FAIL = [
-    # Text classification notebook fails to extract the vocab file on Docker
-    # (needs visibility into the tempdir?)
-    "tflite_text_classification.ipynb",
-]
+NOTEBOOKS_EXPECTED_TO_FAIL = []
 
 
 class ColabNotebookTests(absltest.TestCase):