Revert "Fixed #23892 -- Made deconstructible classes forwards compatible"

This reverts commit f36151ed169813f2873e13ca9de616cfa4095321.

Adding kwargs to deconstructed objects does not achieve useful
forward-compatibility in general, since additional arguments are silently
dropped rather than having their intended effect. In fact, it can make the
failure more difficult to diagnose. Thanks Shai Berger for discussion.