[llvm] Revert "[CI] Extend metrics container to log BuildKite metrics" (PR #130770)

[Nathan Gauër via llvm-commits]

Keenuts wrote:

Was supposed to merge https://github.com/llvm/llvm-project/pull/130317 not https://github.com/llvm/llvm-project/pull/129699

https://github.com/llvm/llvm-project/pull/130770