[TensorExpr] Remove test_train from tensorexpr tests. (#63194)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63194
This test implements functionality used nowhere, and the author no
longer works on that. This PR also adds test_approx to CMakeLists where
it's been missing before.
Test Plan: Imported from OSS
Reviewed By: VitalyFedyunin
Differential Revision: D30292777
Pulled By: ZolotukhinM
fbshipit-source-id: ab6d98e729320a16f1b02ea0c69734f5e7fb2554
Author
Mikhail Zolotukhin
