Revert D17437015: [pytorch][PR] Add the quantized average_pool2d support and adaptive_avg_pool2d support
Test Plan: revert-hammer
Differential Revision:
D17437015
Original commit changeset: 496aed1e4171
fbshipit-source-id: 53e22a85e06bd9d7827579b124b7f136230b6c1d
