rm unnecessary files

Author: dario-coscia

pina/label_tensor.py

@@ -602,4 +602,4 @@ def summation(tensors):
             "name": tensors[0].name,
         }
 
-        return LabelTensor(data, labels)
+        return LabelTensor(data, labels)

pina/model/block/convolution_2d.py

@@ -569,4 +569,4 @@ def transpose_overlap(self, integrals, X):
             # save results of accumulation for each batch
             conv_transposed[batch_idx, ..., -1] = accumulator_batch
 
-        return conv_transposed
+        return conv_transposed