Subzero. Removes X8664_STACK_HACK from the crosstests.

pydir/crosstest.py

 #!/usr/bin/env python2
 
 import argparse
 import os
 import subprocess
 import sys
 import tempfile
 
 import targets
 from szbuild import LinkNonsfi
@@ skipping 181 matching lines @@
         objs.append(obj_llc)
 
     # Add szrt_sb_${target}.o or szrt_native_${target}.o.
     if not args.nonsfi:
         objs.append((
                 '{root}/toolchain_build/src/subzero/build/runtime/' +
                 'szrt_{sb}_' + args.target + '.o'
                 ).format(root=nacl_root,
                          sb=get_sfi_string(args, 'sb', 'nonsfi', 'native')))
 
-    # TODO(jpp): clean up stack hack related code.
-    needs_stack_hack = False
     target_params = []
-    if needs_stack_hack:
-      shellcmd('{bin}/clang -g -o stack_hack.x8664.{key}.o -c '
-               'stack_hack.x8664.c'.format(bin=bindir, key=key))
-      target_params.append('-DX8664_STACK_HACK')
-      target_params.append('stack_hack.x8664.{key}.o'.format(key=key))
 
     if args.target == 'arm32':
       target_params.append('-DARM32')
       target_params.append('-static')
 
     pure_c = os.path.splitext(args.driver)[1] == '.c'
     if not args.nonsfi:
         # Set compiler to clang, clang++, pnacl-clang, or pnacl-clang++.
         compiler = '{bin}/{prefix}{cc}'.format(
             bin=bindir, prefix=get_sfi_string(args, 'pnacl-', '', ''),
@@ skipping 50 matching lines @@
     objs.append(obj_llc)
     if args.nonsfi:
         LinkNonsfi(objs, os.path.join(args.dir, args.output), args.target)
     elif args.sandbox:
         LinkSandbox(objs, os.path.join(args.dir, args.output), args.target)
     else:
         LinkNative(objs, os.path.join(args.dir, args.output), args.target)
 
 if __name__ == '__main__':
     main()