Revert "skip parts of generic_alias test on PyPy3.9-v7.3.9"

This reverts commit 0fea286.

numpy/typing/tests/test_generic_alias.py

@@ -17,10 +17,7 @@
 DType = _GenericAlias(np.dtype, (ScalarType,))
 NDArray = _GenericAlias(np.ndarray, (Any, DType))
 
-_SKIP_PYPY_39 = (sys.implementation.name == 'pypy' and
-                 sys.implementation.version < (7, 3, 10))
-
-if sys.version_info >= (3, 9) and not _SKIP_PYPY_39:
+if sys.version_info >= (3, 9):
     DType_ref = types.GenericAlias(np.dtype, (ScalarType,))
     NDArray_ref = types.GenericAlias(np.ndarray, (Any, DType_ref))
     FuncType = Callable[[Union[_GenericAlias, types.GenericAlias]], Any]
@@ -80,7 +77,7 @@ def test_pass(self, name: str, func: FuncType) -> None:
         """
         value = func(NDArray)
 
-        if sys.version_info >= (3, 9) and not _SKIP_PYPY_39:
+        if sys.version_info >= (3, 9):
             value_ref = func(NDArray_ref)
             assert value == value_ref
 
@@ -142,6 +139,6 @@ def test_raise(
         with pytest.raises(exc_type):
             func(NDArray)
 
-        if sys.version_info >= (3, 9) and not _SKIP_PYPY_39:
+        if sys.version_info >= (3, 9):
             with pytest.raises(exc_type):
                 func(NDArray_ref)