refacto: remove iter usage for passing a dataset

- it is still supported but not required and more confusing

docs/dev/explanation/COMPILATION.md

@@ -24,7 +24,7 @@ y = hnp.EncryptedScalar(hnp.UnsignedInteger(1))
 # Compile the function to its homomorphic equivalent
 engine = hnp.compile_numpy_function(
     f, {"x": x, "y": y},
-    iter([(0, 0), (0, 1), (1, 0), (1, 1), (2, 0), (2, 1), (3, 0), (3, 1)]),
+    [(0, 0), (0, 1), (1, 0), (1, 1), (2, 0), (2, 1), (3, 0), (3, 1)],
 )
 
 # Make homomorphic inference