Use upstream version of file to resolve merge conflict

Author: amemov

libc/config/linux/x86_64/entrypoints.txt

@@ -657,7 +657,6 @@ if(LIBC_TYPES_HAS_FLOAT16)
   list(APPEND TARGET_LIBM_ENTRYPOINTS
     # math.h C23 _Float16 entrypoints
     libc.src.math.acosf16
-    libc.src.math.acospif16
     libc.src.math.acoshf16
     libc.src.math.asinf16
     libc.src.math.asinhf16