llama.cpp deletes precompiled headers entirely, two days after the heap corruption they caused.

PR #28892, merged September 14 by the same author who added them, removes the CMake precompiled headers outright (GitHub). The stated reason is that PCH looked good in development and caused multiple issues nobody accounted for, so the project keeps only the unity builds from the original change. That's the resolution of the PCH-versus-cache-line-size heap corruption fixed in b10955. Sometimes the right move is deleting the feature instead of patching the disagreement.