pug-file: Remove unused functions

Needed to keep Coveralls happy.

lib/pug-file.js

@@ -40,22 +40,6 @@ var PugFile = function (filename, source) {
 };
 
 PugFile.prototype = {
-  addErrorForAllLinesByFilter: function (filter, pattern, errors, message) {
-    var _this = this;
-
-    _this.iterateTokensByFilter(filter, function (token) {
-      _this.addErrorForLine(token.line, pattern, errors, message);
-    });
-  },
-
-  addErrorForAllLinesByType: function (type, pattern, errors, message) {
-    type = utils.createTypeArray(type);
-
-    this.addErrorForAllLinesByFilter(function (token) {
-      return type.indexOf(token.type) !== -1;
-    }, pattern, errors, message);
-  },
-
   addErrorForAllStaticAttributeValues: function (name, errors, message) {
     this.iterateTokensByFilter(function (token) {
       return token.type === 'attribute' && token.name.toLowerCase() === name.toLowerCase();
@@ -198,19 +182,6 @@ PugFile.prototype = {
     }, errors, message);
   },
 
-  addErrorForLine: function (lineNumber, pattern, errors, message) {
-    var line = this.getLine(lineNumber);
-    var regex = new RegExp(pattern);
-    var match = regex.exec(line);
-    var columnNumber;
-
-    if (pattern.test(line)) {
-      columnNumber = 1 + match.index + match[0].indexOf(match[1]);
-
-      errors.add(message, lineNumber, columnNumber);
-    }
-  },
-
   addErrorForMatch: function (a, b, isMatch, errors, message, lineNumber, columnNumber) {
     if ((a === b) === isMatch) {
       errors.add(message, lineNumber, columnNumber);