[remoting android] Trim Cardboard library from APK.

remoting/android/remoting_apk_tmpl.gni

Index: remoting/android/remoting_apk_tmpl.gni
diff --git a/remoting/android/remoting_apk_tmpl.gni b/remoting/android/remoting_apk_tmpl.gni
index ee2f5b5e02a89b2fe95c217fa7a1496e1557e64c..1af1b94a4173949bff2967c985393a815a2dda16 100644
--- a/remoting/android/remoting_apk_tmpl.gni
+++ b/remoting/android/remoting_apk_tmpl.gni
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/android/rules.gni")
+import("//remoting/remoting_options.gni")
 
 template("remoting_apk_tmpl") {
   android_apk(target_name) {
@@ -16,7 +17,7 @@ template("remoting_apk_tmpl") {
       "//remoting/android:remoting_client_jni",
     ]
 
-    if (target_cpu == "arm") {
+    if (remoting_enable_cardboard && target_cpu == "arm") {
       deps += [ "//remoting/android:remoting_cardboard_extract_native_lib" ]
       loadable_modules = [ "$root_out_dir/libvrtoolkit.so" ]
     }