Remove obsolete function

spacy/ml/spacy_vectors.py

@@ -1,27 +0,0 @@
-import numpy
-from thinc.api import Model, Unserializable
-
-
-def SpacyVectors(vectors) -> Model:
-    attrs = {"vectors": Unserializable(vectors)}
-    model = Model("spacy_vectors", forward, attrs=attrs)
-    return model
-
-
-def forward(model, docs, is_train: bool):
-    batch = []
-    vectors = model.attrs["vectors"].obj
-    for doc in docs:
-        indices = numpy.zeros((len(doc),), dtype="i")
-        for i, word in enumerate(doc):
-            if word.orth in vectors.key2row:
-                indices[i] = vectors.key2row[word.orth]
-            else:
-                indices[i] = 0
-        batch_vectors = vectors.data[indices]
-        batch.append(batch_vectors)
-
-        def backprop(dY):
-            return None
-
-    return batch, backprop