[[CHORE]] Remove unused internal variable

The `urls` variable was included in the initial release of JSLint [1]. It was
later removed via [1], before the first public release of JSHint. JSHint has
never used this value.

[1] ca120a7
[2] 528bd2e

src/jshint.js

@@ -86,8 +86,6 @@ var JSHINT = (function() {
     membersOnly,
     predefined,    // Global variables defined by option
 
-    urls,
-
     extraModules = [],
     emitter = new events.EventEmitter();
 
@@ -6339,7 +6337,6 @@ var JSHINT = (function() {
     });
 
     functions = [state.funct];
-    urls = [];
     member = {};
     membersOnly = null;
     inblock = false;
@@ -6537,11 +6534,6 @@ var JSHINT = (function() {
       data.implieds = impliedGlobals;
     }
 
-    if (urls.length > 0) {
-      /* istanbul ignore next */
-      data.urls = urls;
-    }
-
     globals = state.funct["(scope)"].getUsedOrDefinedGlobals();
     if (globals.length > 0) {
       data.globals = globals;