Remove unused param

COM3D2.ToukaScreenShot.Plugin/ToukaScreenShot.cs

@@ -176,11 +176,11 @@ namespace CM3D2.ToukaScreenShot.Plugin
             return result;
         }
 
-        private string GetTimeFileName(string postfix = "")
+        private string GetTimeFileName()
         {
             var targetFolder = Path.Combine(UTY.gameProjectPath, folderName);
             if (!Directory.Exists(targetFolder)) Directory.CreateDirectory(targetFolder);
-            return Path.Combine(targetFolder, $"{fileNameHead}{DateTime.Now:yyyyMMddHHmmss}{postfix}{fileNameEnd}.png");
+            return Path.Combine(targetFolder, $"{fileNameHead}{DateTime.Now:yyyyMMddHHmmss}{fileNameEnd}.png");
         }
 
         private void BackUpCamera()