🎨 cleanup of the _numtype tests

Author: jorenham

src/_numtype/@test/test__numtype.pyi renamed to src/_numtype/@test/test_to_array.pyi

@@ -44,12 +44,6 @@ S_3d: list[list[list[bytes]]]
 U_3d: list[list[list[str]]]
 O_3d: list[list[list[object]]]
 
-###
-# nested sequence
-
-nested_bool_1d: _nt.Sequence1ND[bool] = b_1d
-nested_bool_2d: _nt.Sequence1ND[bool] = b_2d
-
 ###
 # bool
 
@@ -118,4 +112,4 @@ bool_3nd_reject_2d: _nt.ToBool_3nd = b1_2d  # type: ignore[assignment]  # pyrigh
 bool_3nd_accept_3d: _nt.ToBool_3nd = b1_3d
 
 ###
-# TODO(jorenham): repeat for all the other `_To` and `_Co` types (codegen)
+# TODO(jorenham): repeat for all the other `_To` array-like types (codegen)