Remove net & url small, iOS ICU alternatives, unit tests.

net/android/net_jni_registrar.cc

Index: net/android/net_jni_registrar.cc
diff --git a/net/android/net_jni_registrar.cc b/net/android/net_jni_registrar.cc
index ba1b5a8d789ef1c8c8d2e22602a384e87c04362f..b52f8ef17cbff0c8dd9ea1068f25c8c49fd2953e 100644
--- a/net/android/net_jni_registrar.cc
+++ b/net/android/net_jni_registrar.cc
@@ -13,9 +13,10 @@
 #include "net/android/network_library.h"
 #include "net/android/traffic_stats.h"
 #include "net/cert/x509_util_android.h"
+#include "net/features.h"
 #include "net/proxy/proxy_config_service_android.h"
 
-#if defined(USE_ICU_ALTERNATIVES_ON_ANDROID)
+#if BUILDFLAG(USE_PLATFORM_ICU_ALTERNATIVES)
 #include "net/base/net_string_util_icu_alternatives_android.h"  // nogncheck
 #endif
 
@@ -32,7 +33,7 @@ static base::android::RegistrationMethod kNetRegisteredMethods[] = {
     {"NetworkChangeNotifierAndroid", NetworkChangeNotifierAndroid::Register},
     {"ProxyConfigService", ProxyConfigServiceAndroid::Register},
     {"X509Util", RegisterX509Util},
-#if defined(USE_ICU_ALTERNATIVES_ON_ANDROID)
+#if BUILDFLAG(USE_PLATFORM_ICU_ALTERNATIVES)
     {"NetStringUtils", RegisterNetStringUtils}
 #endif
 };