remove unused build file

build/azure-pipelines/linux/frozen-check.js

-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-'use strict';
-Object.defineProperty(exports, "__esModule", { value: true });
-const documentdb_1 = require("documentdb");
-function createDefaultConfig(quality) {
-    return {
-        id: quality,
-        frozen: false
-    };
-}
-function getConfig(quality) {
-    const client = new documentdb_1.DocumentClient(process.env['AZURE_DOCUMENTDB_ENDPOINT'], { masterKey: process.env['AZURE_DOCUMENTDB_MASTERKEY'] });
-    const collection = 'dbs/builds/colls/config';
-    const query = {
-        query: `SELECT TOP 1 * FROM c WHERE c.id = @quality`,
-        parameters: [
-            { name: '@quality', value: quality }
-        ]
-    };
-    return new Promise((c, e) => {
-        client.queryDocuments(collection, query).toArray((err, results) => {
-            if (err && err.code !== 409) {
-                return e(err);
-            }
-            c(!results || results.length === 0 ? createDefaultConfig(quality) : results[0]);
-        });
-    });
-}
-getConfig(process.argv[2])
-    .then(config => {
-    console.log(config.frozen);
-    process.exit(0);
-})
-    .catch(err => {
-    console.error(err);
-    process.exit(1);
-});