Drop JetFilesProvider service

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JetFilesProvider.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.java;
-
-import com.intellij.openapi.components.ServiceManager;
-import com.intellij.openapi.project.Project;
-import com.intellij.psi.search.GlobalSearchScope;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.jet.lang.psi.JetFile;
-
-import java.util.Collection;
-
-public abstract class JetFilesProvider {
-    @NotNull
-    public static JetFilesProvider getInstance(Project project) {
-        return ServiceManager.getService(project, JetFilesProvider.class);
-    }
-
-    @NotNull
-    public abstract Collection<JetFile> allInScope(@NotNull GlobalSearchScope scope);
-    public abstract boolean isFileInScope(@NotNull JetFile file, @NotNull GlobalSearchScope scope);
-}