Fix cronet build after JNI registration change.

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 48a131454ff0ea21512d6c9f446be0967b46bea9..dfa5aef90cc512f0be96b44ab64a4fb3ef066aa1 100644
--- a/net/android/net_jni_registrar.cc
+++ b/net/android/net_jni_registrar.cc
@@ -14,10 +14,6 @@
 #include "net/proxy/proxy_config_service_android.h"
 #include "url/url_features.h"
 
-#if BUILDFLAG(USE_PLATFORM_ICU_ALTERNATIVES)
-#include "net/base/net_string_util_icu_alternatives_android.h"  // nogncheck
-#endif
-
 namespace net {
 namespace android {
 
@@ -27,9 +23,6 @@ static base::android::RegistrationMethod kNetRegisteredMethods[] = {
     {"NetworkChangeNotifierAndroid", NetworkChangeNotifierAndroid::Register},
     {"ProxyConfigService", ProxyConfigServiceAndroid::Register},
     {"X509Util", RegisterX509Util},
-#if BUILDFLAG(USE_PLATFORM_ICU_ALTERNATIVES)
-    {"NetStringUtils", RegisterNetStringUtils}
-#endif
 };
 
 bool RegisterJni(JNIEnv* env) {