Removing llama-server.exe base64 payload limit?

[UNDEFINED-BEHAVIOR]

I was having problem uploading large files to the server from build in web UI recently.
The patch from this PR solves that problem on local build.

#20228
srv->set_payload_max_length(1024LL * 1024LL * 1024LL);

Will there be any unforeseen problems if I set it to maximum, ie: size_t -1 or something?