Revert "package/Makefile.in: Use 64-bit time_t with glibc toolchains for > year 2038 support"

This reverts commit 6e33e590.

This unfortunately breaks a number of packages, as glibc errors out if 64bit
time_t is used without 64bit file offsets, and some packages undefine
_FILE_OFFSET_BITS leading to build breakage:

 #  if ! defined (_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64
 #   error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
..

So revert it for 2022.02.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>