Revert ":construction_worker: using libc++ with Clang"
Revert ":construction_worker: using libc++ with Clang"

This reverts commit 41b2c69bdb72268638472f46bd996f98919e06e2.

kaidokert/json,nlohmann/json,kaidokert/json,kaidokert/json,nlohmann/json,theodelrieu/json,theodelrieu/json,nlohmann/json