Simplify cli_main

ports/git/build.sh

 # Copyright (c) 2013 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.
 
 EXECUTABLES="git git-remote-http"
 
 BUILD_DIR=${SRC_DIR}
 export EXTLIBS+="${NACL_CLI_MAIN_LIB} \
--lppapi_simple -lnacl_spawn -lnacl_io -lppapi -lppapi_cpp -l${NACL_CPP_LIB}"
+-lppapi_simple -lnacl_io -lppapi -lppapi_cpp -l${NACL_CPP_LIB}"
 
 if [ "${NACL_SHARED}" != "1" ]; then
   # These are needed so that the configure can detect libcurl when statically
   # linked.
   export LIBS="-lcurl -lssl -lcrypto -lz"
   EXTLIBS+=" -lglibc-compat"
 fi
 
 if [ ${OS_NAME} = "Darwin" ]; then
   # gettext (msgfmt) doesn't exist on darwin by default.  homebrew installs
@@ skipping 32 matching lines @@
   DefaultBuildStep
 }
 
 InstallStep() {
   return
 }
 
 PublishStep() {
   PublishByArchForDevEnv
 }