Stop disabling building of partly_invalid.nexe in a corner case

tests/stubout_mode/nacl.scons

 # -*- python -*-
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 Import('env')
 
 # Do not run these tests with pexes, assuming they are portable, since
 # they use inline assembler.
 if env.Bit('bitcode') and env.Bit('pnacl_generate_pexe'):
   Return()
 
 # The file partly_invalid.c contains inline assembler
 if env.Bit('bitcode'):
   env.AddBiasForPNaCl()
   env.PNaClForceNative()
 
 # Newlib + PIC doesn't provide native ___tls_get_addr, so gold complains.
 if env.Bit('bitcode') and env.Bit('nacl_pic'):
   Return()
 
 # TODO(mseaborn): Extend the ARM validator to support this.
 # BUG= http://code.google.com/p/nativeclient/issues/detail?id=2369
 if env.Bit('build_arm'):
   Return()
 
-# Curiously, on the nacl-win64_glibc_opt trybot, small_tests_irt is
-# producing a version of partly_invalid.nexe that contains an empty
-# ".iplt" section, and ncval_stubout currently fails on empty sections
-# (see http://code.google.com/p/nativeclient/issues/detail?id=2795).
-# I cannot reproduce this locally.  It might be a result of
-# non-determinism in the order in which Scons targets are built.
-# TODO(mseaborn): Fix ncval_stubout and investigate why we get an
-# empty ".iplt" section.
-if env.Bit('tests_use_irt') and env.Bit('nacl_glibc'):
-  Return()
-
 # R-DFA does not support stubout mode
 if env.Bit('validator_ragel'):
   Return()
 
 if 'TRUSTED_ENV' not in env:
   Return()
 
 stubout_tool = env['TRUSTED_ENV'].File(
     '${STAGING_DIR}/${PROGPREFIX}ncval_stubout${PROGSUFFIX}')
 
@@ skipping 46 matching lines @@
 env.AddNodeToTestSuite(node, test_suites, 'run_stubout_mode_test')
 
 # Using the standalone ncval_stubout tool to rewrite the executable
 # offline should be equivalent to using sel_ldr's "-s" option.
 node = env.CommandSelLdrTestNacl(
     'partly_invalid_stubout.out',
     partly_invalid_stubout_nexe,
     stdout_golden=env.File('with_stubout.stdout'),
     exit_status='untrusted_sigill')
 env.AddNodeToTestSuite(node, test_suites, 'run_offline_stubout_test')