A senior Hong Kong police officer has defended the move to pull out of the force’s posts at two public hospitals, saying it was not in retaliation against verbal abuse officers had been subjected to for their handling of anti-extradition bill protests.There have been strained relations between the public and law enforcers in the aftermath of a series of protests against the now-suspended bill, which would have allowed Hong Kong to transfer fugitives to other jurisdictions, including mainland…