maximumLineLength: abstract common boilerplate into local removeLoc function

empty lines .loc.start.line - 1 through .loc.end.line - 1 is used in
multiple places and warrants a helper - introduced removeLoc(tokenOrNode)

Author: himdel

lib/rules/maximum-line-length.js

@@ -106,11 +106,15 @@ module.exports.prototype = {
         // This check should not be destructive
         lines = lines.slice();
 
+        var removeLoc = function(tokenOrNode) {
+            for (var i = tokenOrNode.loc.start.line; i <= tokenOrNode.loc.end.line; i++) {
+                lines[i - 1] = '';
+            }
+        };
+
         if (this._allowRegex) {
             file.iterateTokensByType('RegularExpression', function(token) {
-                for (var i = token.loc.start.line; i <= token.loc.end.line; i++) {
-                    lines[i - 1] = '';
-                }
+                removeLoc(token);
             });
         }
 
@@ -158,9 +162,7 @@ module.exports.prototype = {
         if (this._allowRequire) {
             file.iterateNodesByType('CallExpression', function(node) {
                 if (node.callee.name === 'require') {
-                    for (var i = node.loc.start.line; i <= node.loc.end.line; i++) {
-                        lines[i - 1] = '';
-                    }
+                    removeLoc(node);
                 }
             });
         }