Remove faulty throw statements

The `throw` statements that were recently inserted into these tests have
an observable impact on the parsing behavior: they causes the `"use
strict"` token sequence to be interpreted as a string literal instead of
a directive prolog, which in turn effects how the tests are interpreted.

Remove the new `throw` statements from these tests and rely on
previously-existing statements that serve the same purpose without
impacting program strictness.

lint.whitelist

@@ -7,3 +7,8 @@
 # test/language/made-up-file.js FRONTMATTER LICENSE
 #
 # Note that lines prefixed with the "hash" symbol (#) will be ignored.
+test/language/directive-prologue/10.1.1-5gs.js NEGATIVE
+test/language/directive-prologue/10.1.1-2gs.js NEGATIVE
+test/language/directive-prologue/14.1-5gs.js NEGATIVE
+test/language/directive-prologue/14.1-4gs.js NEGATIVE
+test/language/directive-prologue/10.1.1-8gs.js NEGATIVE

test/language/directive-prologue/10.1.1-2gs.js

@@ -12,8 +12,6 @@ negative:
 flags: [raw]
 ---*/
 
-throw "Test262: This statement should not be evaluated.";
-
 "use strict"
 throw new Error("This code should not execute");
 var public = 1;

test/language/directive-prologue/10.1.1-5gs.js

@@ -12,8 +12,6 @@ negative:
 flags: [raw]
 ---*/
 
-throw "Test262: This statement should not be evaluated.";
-
 "use strict";
 throw new Error("This code should not execute");
 var public = 1;

test/language/directive-prologue/10.1.1-8gs.js

@@ -12,8 +12,6 @@ negative:
 flags: [raw]
 ---*/
 
-throw "Test262: This statement should not be evaluated.";
-
 "use strict";
 "use strict";
 var public = 1;

test/language/directive-prologue/14.1-4gs.js

@@ -12,8 +12,6 @@ negative:
 flags: [raw]
 ---*/
 
-throw "Test262: This statement should not be evaluated.";
-
 "use strict";
 throw new Error("This code should not execute");
 eval = 42;

test/language/directive-prologue/14.1-5gs.js

@@ -12,8 +12,6 @@ negative:
 flags: [raw]
 ---*/
 
-throw "Test262: This statement should not be evaluated.";
-
 "a";
 "use strict";
 "c";