delete mode 100644 lib/libc/mingw/math/x86/sin.def.h
 delete mode 100644 lib/libc/mingw/math/x86/sinl.c
 delete mode 100644 lib/libc/mingw/math/x86/sinl_internal.S
 delete mode 100644 lib/libc/musl/src/math/__sinl.c
 delete mode 100644 lib/libc/musl/src/math/sinl.c