android envsetup: Remove --try-32bit-host flag.

build/android/envsetup_functions.sh

Index: build/android/envsetup_functions.sh
diff --git a/build/android/envsetup_functions.sh b/build/android/envsetup_functions.sh
index 151760b34ba2d9d6be54801262c234b3cb904ba0..9a85e00f0c0eda48d74c184cb3fa6e78c4f65538 100755
--- a/build/android/envsetup_functions.sh
+++ b/build/android/envsetup_functions.sh
@@ -133,7 +133,6 @@ print_usage() {
   echo "usage: ${0##*/} [--target-arch=value] [--help]" >& 2
   echo "--target-arch=value     target CPU architecture (arm=default, x86)" >& 2
   echo "--host-os=value         override host OS detection (linux, mac)" >&2
-  echo "--try-32bit-host        try building a 32-bit host architecture" >&2
   echo "--help                  this help" >& 2
 }
 
@@ -142,7 +141,6 @@ print_usage() {
 ################################################################################
 process_options() {
   host_os=$(uname -s | sed -e 's/Linux/linux/;s/Darwin/mac/')
-  try_32bit_host_build=
   while [[ -n $1 ]]; do
     case "$1" in
       --target-arch=*)
@@ -151,9 +149,6 @@ process_options() {
       --host-os=*)
         host_os="$(echo "$1" | sed 's/^[^=]*=//')"
         ;;
-      --try-32bit-host)
-        try_32bit_host_build=true
-        ;;
       --help)
         print_usage
         return 1