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diff --git a/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-SHARED.js b/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-SHARED.js
deleted file mode 100644
index 0ba8e21..0000000
--- a/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-SHARED.js
+++ /dev/null
@@ -1,92 +0,0 @@
-/** \file
- * \brief Wrappers for SharedArrayBuffer
- *
- *  \author Copyright (C) 2020  Peter Hornak
- *
- *  \license SPDX-License-Identifier: GPL-3.0-or-later
- */
-//
-//  This program is free software: you can redistribute it and/or modify
-//  it under the terms of the GNU General Public License as published by
-//  the Free Software Foundation, either version 3 of the License, or
-//  (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-//  GNU General Public License for more details.
-//
-//  You should have received a copy of the GNU General Public License
-//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
-//
-
-/** \file
- * \ingroup wrappers
- *
- * This wrapper aims on prevention of misusing `SharedArrayBuffer` to create perfect timers and to
- * perfrom microarchitectural attacks. This code was originally a part of [ChromeZero](https://github.com/IAIK/ChromeZero).
- *
- * \see https://www.fit.vut.cz/study/thesis/22374/?year=0&sup=Pol%C4%8D%C3%A1k, especially Sect. 5.1
- *
- * \see Schwarz M., Maurice C., Gruss D., Mangard S. (2017) Fantastic Timers and Where to Find Them: High-Resolution Microarchitectural Attacks in JavaScript. In: Kiayias A. (eds) Financial Cryptography and Data Security. FC 2017. Lecture Notes in Computer Science, vol 10322. Springer, Cham. https://doi.org/10.1007/978-3-319-70972-7_13
- */
-
-
-var proxyHandler = `{
-	get(target, key, receiver) {
-		let j;
-		let slow = Math.floor(Math.random() * 10000)
-		for (let i = 0; i < slow;) {
-			j = i;
-			i = j + 1;
-		}
-		let value = target[key];
-		return typeof value == 'function' ? value.bind(target) : value;
-	},
-	set(target, key, value) {
-		let j;
-		let slow = Math.floor(Math.random() * 10000);
-		for (let i = 0; i < slow;) {
-			j = i;
-			i = j + 1;
-		}
-		return Reflect.set(...arguments);
-	}
-}`;
-
-/*
- * Create private namespace
- */
-
-(function () {
-	var wrappingFunctionBody = `
-	let _target = target;
-	let _data = new originalF(target);
-	var proxy = new Proxy(_data, ${proxyHandler});
-	return proxy;
-	`;
-
-	var wrappers = [
-		{
-			parent_object: "window",
-			parent_object_property: "SharedArrayBuffer",
-			original_function: "window.SharedArrayBuffer",
-			wrapped_objects: [],
-			helping_code: `
-				if (window.SharedArrayBuffer === undefined) {
-					return;
-				}
-				let forbid = args[0];
-			`,
-			wrapping_function_args: `target`,
-			wrapping_function_body: wrappingFunctionBody,
-			post_replacement_code: `
-				if (forbid) {
-					delete(window.SharedArrayBuffer);
-				}
-			`,
-		}
-	];
-
-	add_wrappers(wrappers);
-})();