Remove references to 'chrome_build_id'

build/config/android/config.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file contains common system config stuff for the Android build.
 
 if (is_android) {
   assert(rebase_path("//", root_build_dir) == "../../",
          "Android output directory must be nested 2 levels within src/ (" +
              "e.g.: out-gn/Debug). http://crbug.com/412935")
@@ skipping 55 matching lines @@
 
     # The path to the keystore to use for signing builds.
     android_keystore_path = default_android_keystore_path
 
     # The name of the keystore to use for signing builds.
     android_keystore_name = default_android_keystore_name
 
     # The password for the keystore to use for signing builds.
     android_keystore_password = default_android_keystore_password
 
-    # This is a unique identifier for a given build. It's used for
-    # identifying various build artifacts corresponding to a particular build of
-    # chrome (e.g. where to find archived symbols).
-    android_chrome_build_id = "\"\""
-
     # Set to true to run findbugs on JAR targets.
     run_findbugs = false
 
     # Set to true to enable verbose findbugs logging. This does nothing if
     # run_findbugs is false.
     findbugs_verbose = false
 
     # Enables verbose proguard output (summaries and unfiltered output).
     proguard_verbose = false
 
@@ skipping 172 matching lines @@
   } else if (current_cpu == "mips64el") {
     android_app_abi = "mips64"
   } else {
     assert(false, "Unknown Android ABI: " + current_cpu)
   }
 
   if (android_libcpp_lib_dir == "") {
     android_libcpp_lib_dir = "${android_libcpp_root}/libs/${android_app_abi}"
   }
 }