Revert "Start adding TLS (SSL) sockets to dart:io."

runtime/bin/dartutils.h

Index: runtime/bin/dartutils.h
diff --git a/runtime/bin/dartutils.h b/runtime/bin/dartutils.h
index 8b5ed20dfa98b0d1e97207636c7ed08b36b9b82a..9d8e8a30e08ebae63acefa93332e9cb8b3be9379 100644
--- a/runtime/bin/dartutils.h
+++ b/runtime/bin/dartutils.h
@@ -98,16 +98,10 @@ class DartUtils {
   static bool PostNull(Dart_Port port_id);
   static bool PostInt32(Dart_Port port_id, int32_t value);
 
-  static Dart_Handle GetDartClass(const char* library_url,
-                                  const char* class_name);
   // Create a new Dart OSError object with the current OS error.
   static Dart_Handle NewDartOSError();
   // Create a new Dart OSError object with the provided OS error.
   static Dart_Handle NewDartOSError(OSError* os_error);
-  static Dart_Handle NewDartExceptionWithMessage(const char* library_url,
-                                                 const char* exception_name,
-                                                 const char* message);
-  static Dart_Handle NewDartIllegalArgumentException(const char* message);
 
   static const char* kDartScheme;
   static const char* kDartExtensionScheme;