Remove skip of jit_compile=True when targeting TPUs; the underlying b…

…ug is marked as fixed.

PiperOrigin-RevId: 546418777

keras/engine/training.py

@@ -1351,15 +1351,7 @@ def run_step(data):
                     model._train_counter.assign_add(1)
                 return outputs
 
-            if self.jit_compile and not isinstance(
-                model.distribute_strategy,
-                (
-                    tf.compat.v1.distribute.experimental.TPUStrategy,
-                    tf.distribute.TPUStrategy,
-                ),
-            ):
-                # TODO(b/258249546): Explicit `jit_compile=True` on TPU causes
-                # unexpected behavior, so we skip TPU training now.
+            if self.jit_compile:
                 run_step = tf.function(
                     run_step, jit_compile=True, reduce_retracing=True
                 )