Simplify cli_main

ports/devenv/build.sh

 # Copyright (c) 2014 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.
 
 export EXTRA_LIBS="${NACL_CLI_MAIN_LIB} \
-  -lnacl_spawn -lppapi_simple \
+  -lppapi_simple \
   -lnacl_io -lppapi -lppapi_cpp -l${NACL_CPP_LIB}"
 
 EXECUTABLES="tests/devenv_small_test_${NACL_ARCH}${NACL_EXEEXT} \
              jseval/jseval_${NACL_ARCH}${NACL_EXEEXT}"
 
 BuildStep() {
   SetupCrossEnvironment
 
   # Build jseval module.
   MakeDir ${BUILD_DIR}/jseval
@@ skipping 110 matching lines @@
     fi
     # Run large and io2014 tests only on the buildbots (against pinned revs).
     if [[ "${BUILDBOT_BUILDERNAME:-}" != "" ]]; then
       LogExecute python ${START_DIR}/../devenv/devenv_large_test.py \
         -x -vv -a ${arch}
       LogExecute python ${START_DIR}/../devenv/io2014_test.py \
         -x -vv -a ${arch}
     fi
   done
 }