Remove redundant test

The production under test is also used in the following file:

test/language/literals/numeric/legacy-octal-integer-strict.js

That test expresses the syntax with literal source text, making it
useful for parsers. Remove this test in favor of the other.

test/language/literals/numeric/7.8.3-2-s.js

@@ -1,19 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-es5id: 7.8.3-2-s
-description: Strict Mode - octal extension (00) is forbidden in strict mode
-flags: [onlyStrict]
----*/
-
-var err = null;
-
-try {
-  eval("var _7_8_3_2 = 00;");
-} catch (e) {
-  err = e;
-}
-
-assert(err instanceof SyntaxError);
-assert.sameValue(typeof _7_8_3_2, "undefined");