Minor, delete useless class

compiler/frontend/src/org/jetbrains/jet/lang/resolve/name/Name.java

@@ -52,10 +52,16 @@ public final class Name implements Comparable<Name> {
 
     @NotNull
     public static Name identifier(@NotNull String name) {
-        NameUtils.requireIdentifier(name);
+        if (!isValidIdentifier(name)) {
+            throw new IllegalArgumentException("invalid identifier: " + name);
+        }
         return new Name(name, false);
     }
 
+    public static boolean isValidIdentifier(@NotNull String name) {
+        return !name.isEmpty() && !name.startsWith("<") && !name.contains(".") && !name.contains("/");
+    }
+
     /** Must be validated by caller */
     @NotNull
     public static Name identifierNoValidate(@NotNull String name) {

compiler/frontend/src/org/jetbrains/jet/lang/resolve/name/NameUtils.java

@@ -1,36 +0,0 @@
-/*
- * Copyright 2010-2013 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.jet.lang.resolve.name;
-
-import org.jetbrains.annotations.NotNull;
-
-public class NameUtils {
-
-    private NameUtils() {
-    }
-
-    public static boolean isValidIdentified(@NotNull String name) {
-        return name.length() > 0 && !name.startsWith("<") && !name.contains(".") && !name.contains("/");
-    }
-
-    public static void requireIdentifier(@NotNull String name) {
-        if (!isValidIdentified(name)) {
-            throw new IllegalArgumentException("invalid identifier: " + name);
-        }
-    }
-
-}