Revert "Add a GN assert preventing android templates in non-default toolchain"

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")
 
   import("//build_overrides/build.gni")
 
-  # Disable all java-related templates in secondary toolchains. Java is not
-  # toolchain-dependent, so a variation on toolchains is likely a mistake.
-  if (enable_java_templates) {
-    assert(current_toolchain == default_toolchain,
-           "Android templates should be used only by the default toolchain.")
-  }
-
   has_chrome_android_internal =
       exec_script("//build/dir_exists.py",
                   [ rebase_path("//clank", root_build_dir) ],
                   "string") == "True"
 
   if (has_chrome_android_internal) {
     import("//clank/config.gni")
   }
 
   if (!defined(extra_chrome_shared_library_configs)) {
@@ skipping 265 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}"
   }
 }