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

This reverts commit 6e33e5908086a511294296f317f6e6f86fa84b1d.

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>

package/Makefile.in

@@ -167,7 +167,7 @@ else ifeq ($(BR2_FORTIFY_SOURCE_2),y)
 TARGET_HARDENED += -D_FORTIFY_SOURCE=2
 endif
 
-TARGET_CPPFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64
+TARGET_CPPFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 TARGET_CFLAGS = $(TARGET_CPPFLAGS) $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) $(TARGET_HARDENED)
 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 TARGET_FCFLAGS = $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)