Remove exp_save_path on the LightningModule (#7266)

* deprecate-exp-save-path

* Update lightning.py

* Update CHANGELOG.md

* remove-not-deprecate

CHANGELOG.md

@@ -183,6 +183,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ### Deprecated
 
+
 - Deprecated the `save_function` property from the `ModelCheckpoint` callback ([#7201](https://github.com/PyTorchLightning/pytorch-lightning/pull/7201))
 
 
@@ -228,6 +229,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 ### Removed
 
 
+- Removed the `exp_save_path` property from the `LightningModule` ([#7266](https://github.com/PyTorchLightning/pytorch-lightning/pull/7266))
+
+
 - Removed training loop explicitly calling `EarlyStopping.on_validation_end` if no validation is run ([#7069](https://github.com/PyTorchLightning/pytorch-lightning/pull/7069))
 
 

pytorch_lightning/core/lightning.py

@@ -81,8 +81,6 @@ class LightningModule(
         # torch/nn/modules/module.py#L227)
         torch._C._log_api_usage_once(f"lightning.module.{self.__class__.__name__}")
 
-        self.exp_save_path = None
-
         self.loaded_optimizer_states_dict = {}
 
         #: Pointer to the trainer object