Merge branch 'v33.2-optimize-20241104' into release_jdk17

clx-performance-web/src/main/java/com/nbopen/api/NBOpenSDK.java

@@ -347,26 +347,6 @@ public final class NBOpenSDK {
         }
     }
 
-    private static void deleteFile(File file) {
-        if (file.exists()) {
-            if (file.isFile()) {
-                file.delete();
-            } else {
-                File[] listFiles = file.listFiles();
-                File[] var2 = listFiles;
-                int var3 = listFiles.length;
-
-                for(int var4 = 0; var4 < var3; ++var4) {
-                    File f = var2[var4];
-                    deleteFile(f);
-                }
-            }
-
-            file.delete();
-        }
-
-    }
-
     private static void printMsg(String data) {
         String debuged = System.getProperty("nbsdk.sys.debug", "false");
         if (Boolean.parseBoolean(debuged)) {