[Vulkan] Remove redundant qualifiers on writeonly images. (#51425)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/51425
Test Plan: Imported from OSS
Reviewed By: SS-JIA
Differential Revision: D26179605
Pulled By: AshkanAliabadi
fbshipit-source-id: 26358cd4fd23922fed21120e120774eea0b728df
