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

build/config/android/config.gni

Index: build/config/android/config.gni
diff --git a/build/config/android/config.gni b/build/config/android/config.gni
index debda5c7665c299b10426015b8bd60a0a4a5bd11..24852d555dd061c2b5f145b352fbc933aea0a8ad 100644
--- a/build/config/android/config.gni
+++ b/build/config/android/config.gni
@@ -11,13 +11,6 @@ if (is_android) {
 
   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) ],