[VL] Disable protobuf build by default

[PHILO-HE]

What changes were proposed in this pull request?

Disable protobuf by default as it is not required for each build.
Also removed the build protobuf option from get_velox.sh since it is confusing and unnecessary. This option just controls whether to change velox's setup script. So it depends on the enabling of --run_setup_script.

How was this patch tested?

CI.

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on Github Issues?

https://github.com/apache/incubator-gluten/issues

Then could you also rename commit message and pull request title in the following format?

[GLUTEN-${ISSUES_ID}][COMPONENT]feat/fix: ${detailed message}

See also:

• Other pull requests

[FelixYBW]

when do we need run_setup_script to be enabled? is it used for dynamic link only, right?

[PHILO-HE]

when do we need run_setup_script to be enabled? is it used for dynamic link only, right?

@FelixYBW, yes, vcpkg build doesn't require this script.

[FelixYBW]

with ep_cache=on, the protobuf is build every time when I build Velox. The PR can solve the issue, right?

[PHILO-HE]

with ep_cache=on, the protobuf is build every time when I build Velox. The PR can solve the issue, right?

@FelixYBW, this pr addresses the repeated build of protobuf by Gluten. If it's Velox that builds protobuf every time, it's because the required protobuf is not installed in the system. Does it happen in vcpkg build?

[FelixYBW]

Does it happen in vcpkg build?

Yes

[PHILO-HE]

Does it happen in vcpkg build?

Yes

@FelixYBW, as enable_ep_cache=ON, I guess it's Gluten that triggers protobuf build every time. This pr should have fixed it already. If protobuf is still built every time, please let me know.