delete mode 100644 lib/libc/musl/src/math/aarch64/roundf.c
 delete mode 100644 lib/libc/musl/src/math/powerpc64/roundf.c
 delete mode 100644 lib/libc/musl/src/math/roundf.c
 delete mode 100644 lib/libc/musl/src/math/s390x/roundf.c