onnxruntime

6090d8cd - Fix usage of enable_training_ops and reduce ifdef complexity for training builds (#13888)

Fix usage of enable_training_ops and reduce ifdef complexity for training builds (#13888) ### Description Fix usage of enable_training_ops and reduce ifdef complexity for training builds. ### Motivation and Context This is the second refactoring PR towards creating a dedicated build for on device training. This PR aims to reduce some complexity. We can set ENABLE_TRAINING_OPS in cmake when either ENABLE_TRAINING or ENABLE_TRAINING_ON_DEVICE is selected, this way we dont have to use if defined(ENABLE_TRAINING) || defined(ENABLE_TRAINING_ON_DEVICE ) everywhere in the code. - If it fixes an open issue, please link to the issue here. -->