Revert "Explode in the face of the user if (s)he has a broken glibc"

This reverts commit 82f20ceb.

Detection not needed in this branch - we like to live dangerously.

configure.ac

@@ -539,24 +539,6 @@ AC_LANG_PUSH(C++)
 AC_LANG_POP(C++)
 fi
 
-dnl
-dnl Buggy glibc prevention. Purposedly not cached.
-dnl Ubuntu alone has 20 bug numbers for this...
-dnl
-AC_MSG_CHECKING(for buggy GNU/libc versions)
-AC_PREPROC_IFELSE([
-#include <limits.h>
-#if defined (__GLIBC__) && (__GLIBC__ == 2) \
-  && (__GLIBC_MINOR__ >= 5) && (__GLIBC_MINOR__ <= 7)
-# error GNU/libc with dcgettext killer bug!
-#endif
-], [
-  AC_MSG_RESULT([not present])
-], [
-  AC_MSG_RESULT([found])
-  AC_MSG_ERROR([Buggy GNU/libc (version 2.5 - 2.7) present. VLC would crash; there is no viable work-around for this. Check with your distribution vendor on how to update the glibc run-time.])
-])
-
 dnl Plugin compilation stuff
 
 VLC_LIBRARY_SUFFIX