Docstring: replace pysqlite with sqlite3 (GH-31758)

Replace two instances of "pysqlite" with "sqlite3" in sqlite3
docstrings. Also reword "is a no-op" to "does nothing" for clarity.

Doc/library/sqlite3.rst

@@ -836,11 +836,11 @@ Cursor Objects
 
    .. method:: setinputsizes(sizes)
 
-      Required by the DB-API. Is a no-op in :mod:`sqlite3`.
+      Required by the DB-API. Does nothing in :mod:`sqlite3`.
 
    .. method:: setoutputsize(size [, column])
 
-      Required by the DB-API. Is a no-op in :mod:`sqlite3`.
+      Required by the DB-API. Does nothing in :mod:`sqlite3`.
 
    .. attribute:: rowcount
 

Modules/_sqlite/cursor.c

@@ -921,12 +921,12 @@ _sqlite3.Cursor.setinputsizes as pysqlite_cursor_setinputsizes
     sizes: object
     /
 
-Required by DB-API. Does nothing in pysqlite.
+Required by DB-API. Does nothing in sqlite3.
 [clinic start generated code]*/
 
 static PyObject *
 pysqlite_cursor_setinputsizes(pysqlite_Cursor *self, PyObject *sizes)
-/*[clinic end generated code: output=893c817afe9d08ad input=7cffbb168663bc69]*/
+/*[clinic end generated code: output=893c817afe9d08ad input=de7950a3aec79bdf]*/
 {
     Py_RETURN_NONE;
 }
@@ -938,13 +938,13 @@ _sqlite3.Cursor.setoutputsize as pysqlite_cursor_setoutputsize
     column: object = None
     /
 
-Required by DB-API. Does nothing in pysqlite.
+Required by DB-API. Does nothing in sqlite3.
 [clinic start generated code]*/
 
 static PyObject *
 pysqlite_cursor_setoutputsize_impl(pysqlite_Cursor *self, PyObject *size,
                                    PyObject *column)
-/*[clinic end generated code: output=018d7e9129d45efe input=077b017da58b9389]*/
+/*[clinic end generated code: output=018d7e9129d45efe input=607a6bece8bbb273]*/
 {
     Py_RETURN_NONE;
 }