Revert "detect Linux/X32 systems"

This reverts commit 5b56bd0affea7b02b540bdbc4d1d271b0e4fc885.  The bug
reporter wasn't actually using x32, but rather an ordinary 32-bit
userspace on a 64-bit kernel; this patch broke the seccomp sandbox on
the actual x32 architecture.

Patch-Name: revert-x32-sandbox-breakage.patch

1 files changed, 0 insertions, 6 deletions

diff --git a/configure.ac b/configure.ac
index 5944299fa..15fc0d653 100644
--- a/configure.ac
+++ b/configure.ac
@@ -521,8 +521,6 @@ SPP_MSG="no"
 # the --with-solaris-privs option and --with-sandbox=solaris).
 SOLARIS_PRIVS="no"
 
-AC_CHECK_SIZEOF([size_t])
-
 # Check for some target-specific stuff
 case "$host" in
 *-*-aix*)
@@ -891,10 +889,6 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
         case "$host" in
         x86_64-*)
                 seccomp_audit_arch=AUDIT_ARCH_X86_64
-                # X32: AMD64 instructions in 32bit address space.
-                if test "x$ac_cv_sizeof_size_t" = "x4" ; then
-                        seccomp_audit_arch=AUDIT_ARCH_I386
-                fi
                 ;;
         i*86-*)
                 seccomp_audit_arch=AUDIT_ARCH_I386