Revert linux entrypoint edit used for testing (whoops)

Author: mysterymath

libc/config/linux/x86_64/entrypoints.txt

@@ -202,7 +202,6 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdlib.aligned_alloc
     libc.src.stdlib.calloc
     libc.src.stdlib.free
-    libc.src.stdlib.freelist_malloc
     libc.src.stdlib.malloc
     libc.src.stdlib.realloc