Revert "feat: make model instantiateable (#29)" (#31)

This reverts commit 5c75822.

CHANGELOG.md

@@ -18,7 +18,6 @@ Keep it human-readable, your future self will thank you!
  - Update CI to inherit from common infrastructue reusable workflows
  - run downstream-ci only when src and tests folders have changed
  - New error messages for wrongs graphs.
- - Feature: Change model to be instantiatable in the interface, addressing [#28](https://github.com/ecmwf/anemoi-models/issues/28) through [#29](https://github.com/ecmwf/anemoi-models/pulls/29)
 
 ### Removed
 

src/anemoi/models/interface/__init__.py

@@ -14,6 +14,7 @@
 from hydra.utils import instantiate
 from torch_geometric.data import HeteroData
 
+from anemoi.models.models.encoder_processor_decoder import AnemoiModelEncProcDec
 from anemoi.models.preprocessing import Processors
 
 
@@ -72,9 +73,9 @@ def _build_model(self) -> None:
         self.pre_processors = Processors(processors)
         self.post_processors = Processors(processors, inverse=True)
 
-        # Instantiate the model
-        self.model = instantiate(
-            self.config.model.model, config=self.config, data_indices=self.data_indices, graph_data=self.graph_data
+        # Instantiate the model (Can be generalised to other models in the future, here we use AnemoiModelEncProcDec)
+        self.model = AnemoiModelEncProcDec(
+            config=self.config, data_indices=self.data_indices, graph_data=self.graph_data
         )
 
         # Use the forward method of the model directly