remove unused helper

src/compile/index.ts

@@ -5,7 +5,6 @@ import renderDOM from './render-dom/index';
 import renderSSR from './render-ssr/index';
 import { CompileOptions, Warning, Ast } from '../interfaces';
 import Component from './Component';
-import deprecate from '../utils/deprecate';
 
 function normalize_options(options: CompileOptions): CompileOptions {
 	let normalized = assign({ generate: 'dom', dev: false }, options);

src/index.ts

@@ -1,6 +1,5 @@
 import compile from './compile/index';
 import { CompileOptions } from './interfaces';
-import deprecate from './utils/deprecate';
 
 export function create(source: string, options: CompileOptions = {}) {
 	options.format = 'eval';

src/utils/deprecate.ts

@@ -1,8 +0,0 @@
-const seen = new Set();
-
-export default function deprecate(message: string, code = message) {
-	if (seen.has(code)) return;
-	seen.add(code);
-
-	console.warn(`[svelte] DEPRECATION: ${message}`);
-}