fix(mkdir): dont test existence

Similar to 4b8f5754

lib/api/mkdir.js

@@ -20,23 +20,13 @@ module.exports = function mkdir(path, mode, cb) {
 
   var connection = this;
 
-  connection.exists(path, function(err, exists) {
+  // SMB2 open file
+  SMB2Request('create_folder', { path: path }, connection, function(err, file) {
     if (err) cb && cb(err);
-    else if (!exists) {
-      // SMB2 open file
-      SMB2Request('create_folder', { path: path }, connection, function(
-        err,
-        file
-      ) {
-        if (err) cb && cb(err);
-        // SMB2 query directory
-        else
-          SMB2Request('close', file, connection, function() {
-            cb && cb(null);
-          });
+    // SMB2 query directory
+    else
+      SMB2Request('close', file, connection, function() {
+        cb && cb(null);
       });
-    } else {
-      cb(new Error('File/Folder already exists'));
-    }
   });
 };