Phone [Q] How to remove boot logo installed by a custom rom?

Dear All,

I recently flashed my smartphone with a custom rom.
After some time I restored the stock rom.
I want to remove the boot logo which was installed by the custom rom.
I want to remove the boot logo not the animation.
I need on removing this logo. My device specifications are:

Device name: A20 (Qmobile)
Android jellybean 4.1.1
1.2 ghz processor
Kernel version 3.4.5