Revert "Add directory existence check"

Author: chrisgorgo

tests/bids.spec.js

@@ -151,13 +151,4 @@ var suite = describe('BIDS example datasets ', function() {
             isdone();
         });
     });
-
-    // test for directory path not existing
-    it('checks for non-existing directory', function (isdone) {
-        var options = {ignoreNiftiHeaders: true};
-        validate.BIDS("path", options, function (issues) {
-            assertErrorCode(issues.errors, '68');
-        });
-        isdone();
-    });
 });

utils/issues/list.js

@@ -341,10 +341,5 @@ module.exports = {
         key: 'NO_VALID_DATA_FOUND_FOR_SUBJECT',
         severity: 'error',
         reason: 'No BIDS compatible data found for at least one subject.'
-    },
-    68: {
-      key: 'DIRECTORY_DOES_NOT_EXIST',
-      severity: 'error',
-      reason: 'Either wrong directory is choosen or there is an error in joining the path.'
     }
 };

validators/bids.js

@@ -31,7 +31,6 @@ BIDS = {
      * arguments to the callback.
      */
     start: function (dir, options, callback) {
-      if (fs.existsSync(dir)) {
         var self = BIDS;
         utils.options.parse(options, function (issues, options) {
             if (issues && issues.length > 0) {
@@ -61,18 +60,6 @@ BIDS = {
                 });
             }
         });
-      }else{
-        var filename = path.basename(dir);
-        var issue = new Issue({
-            code: 68,
-            file: {
-                name: filename,
-                path: path.join('.', filename),
-                relativePath: path.join('', filename)
-            }
-        });
-        return issue;
-      }
     },
 
     /*