configure: don't check stdint.h
configure: don't check stdint.h

We probably have it if AC_HEADER_STDC succeeded.

Signed-off-by: Bartosz Golaszewski <108de5fbc428215dc26df4468b48691526611148@gmail.com>

brgl/libgpiod,clemensg/libgpiod,brgl/libgpiod,brgl/libgpiod,clemensg/libgpiod,brgl/libgpiod