Add virtual dtor to NamedTensorMetaInterface (#21633)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21633
ghimport-source-id: 6cdf0b1559e696a19e282ff6d5ba79c6b119e8c0
Differential Revision: D15760589
Pulled By: zou3519
fbshipit-source-id: 537882c05ab7b19889a31c648c5efeb1949831a8
