Remove llndk_headers module am: 1783d5ae80 am: 6ae5c9eebf am: a8ded2ce21

Original change: https://android-review.googlesource.com/c/platform/external/vulkan-headers/+/1687465

Change-Id: I524f6543039a0243c7852fa297ed5abccc6e7c6e