I got solution for this question.
I have cracked code AOSP framework level(android.content.pm) and signed as a ploatform apk …
Finally app is silently uninstalling…
or
String cmd = “sh /system/bin/pm uninstall ” + packageName;
    try {Process su = Runtime.getRuntime().exec("su");
        DataOutputStream outputStream = new DataOutputStream(su.getOutputStream());
        outputStream.writeBytes(cmd+"\n");
        outputStream.flush();
        outputStream.writeBytes("exit\n");
        outputStream.flush();
        su.waitFor();
    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
solved Uninstall android application with out user interaction