vulkan: Removed unused function

[winstonma]

Overview

Name	Status
ggml_vk_create_binary_semaphore	Never called
ggml_vk_create_event	Never called
ggml_vk_reset_event	Never called
ggml_vk_end_submission	Never called
ggml_vk_buffer_write_nc_async	Never called
ggml_vk_print_tensor_area (5-arg)	Shadowed by 6-arg version
ggml_vk_test_dequant	Never called
ggml_backend_vk_host_buffer_name	Never registered/called

Just clean up

Additional information

Requirements

• I have read and agree with the contributing guidelines
• AI usage disclosure: Yes, finding and removing the unused function

[0cc4m]

I don't think just looking at what is used and what isn't is good enough, some of these may still become useful in the future. Having them isn't a problem in itself.

The only really valid one in your list might be ggml_vk_end_submission. ggml_vk_print_tensor_area is not shadowed, just a different variant between GGML_VK_RUN_TESTS and GGML_VK_CHECK_RESULTS.

[winstonma]

Should I update the branch so that only ggml_vk_end_submission is removed? Thanks

[0cc4m]

Yeah, you can remove ggml_vk_end_submission and ggml_backend_vk_host_buffer_name

[winstonma]

Functions other than ggml_vk_end_submission and ggml_backend_vk_host_buffer_name is restored

[0cc4m]

@ggml-org/maintainers Another approval needed.