Remove `AcceleratorConnector.has_tpu` (#12109)

CHANGELOG.md

@@ -604,6 +604,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Removed `AcceleratorConnector.use_ipu` property ([#12110](https://github.com/PyTorchLightning/pytorch-lightning/pull/12110))
 
 
+- Removed `AcceleratorConnector.has_tpu` property ([#12109](https://github.com/PyTorchLightning/pytorch-lightning/pull/12109))
+
 
 ### Fixed
 

pytorch_lightning/trainer/connectors/accelerator_connector.py

@@ -848,10 +848,6 @@ class AcceleratorConnector:
             is_distributed |= self.strategy.is_distributed
         return is_distributed
 
-    @property
-    def has_tpu(self) -> bool:
-        return isinstance(self.accelerator, TPUAccelerator)
-
     @property
     def use_dp(self) -> bool:
         return isinstance(self.strategy, DataParallelStrategy)

tests/accelerators/test_accelerator_connector.py

@@ -885,10 +885,8 @@ def test_strategy_choice_ddp_cpu_slurm(device_count_mock, setup_distributed_mock
 
 def test_unsupported_tpu_choice(monkeypatch):
     import pytorch_lightning.utilities.imports as imports
-    from pytorch_lightning.trainer.connectors.accelerator_connector import AcceleratorConnector
 
     monkeypatch.setattr(imports, "_XLA_AVAILABLE", True)
-    monkeypatch.setattr(AcceleratorConnector, "has_tpu", True)
     with pytest.raises(MisconfigurationException, match=r"accelerator='tpu', precision=64\)` is not implemented"):
         Trainer(accelerator="tpu", precision=64)