Removed model_id from Model objects, which in any case in managed by session. ...

Removed model_id from Model objects, which in any case in managed by session.  But tests aren't passing; need to investigate further.

model_server/extensions/ilastik/models.py

@@ -20,7 +20,6 @@ class IlastikParams(BaseModel):
         True,
         description='Load another instance of the same project file if True; return existing one if False'
     )
-    model_id: Union[str, None] = Field(None, description='Unique identifier of the model, or autogenerate if empty')
 
 class IlastikModel(Model):
 
@@ -108,7 +107,6 @@ class IlastikPixelClassifierParams(IlastikParams):
     px_prob_threshold: float = 0.5
 
 class IlastikPixelClassifierModel(IlastikModel, SemanticSegmentationModel):
-    model_id = 'ilastik_pixel_classification'
     operations = ['segment', ]
 
     def __init__(self, params: IlastikPixelClassifierParams, **kwargs):
@@ -175,7 +173,6 @@ class IlastikPixelClassifierModel(IlastikModel, SemanticSegmentationModel):
 
 
 class IlastikObjectClassifierFromSegmentationModel(IlastikModel, InstanceSegmentationModel):
-    model_id = 'ilastik_object_classification_from_segmentation'
 
     @staticmethod
     def _make_8bit_mask(nda):
@@ -249,7 +246,6 @@ class IlastikObjectClassifierFromSegmentationModel(IlastikModel, InstanceSegment
 
 
 class IlastikObjectClassifierFromPixelPredictionsModel(IlastikModel, ImageToImageModel):
-    model_id = 'ilastik_object_classification_from_pixel_predictions'
 
     @staticmethod
     def get_workflow():