Remove unnecessary blank lines.

Author: giosiragusa

Doc/library/io.rst

@@ -70,7 +70,6 @@ In-memory text streams are also available as :class:`StringIO` objects::
    might raise a :exc:`BlockingIOError` if the stream cannot perform the operation
    immediately.
 
-
 The text stream API is described in detail in the documentation of
 :class:`TextIOBase`.
 

Modules/_io/textio.c

@@ -1996,7 +1996,6 @@ _io_TextIOWrapper_read_impl(textio *self, Py_ssize_t n)
             Py_DECREF(bytes);
             PyErr_SetString(PyExc_BlockingIOError, "Read returned None.");
             return NULL;
-
         }
 
         _PyIO_State *state = self->state;