@Tamtam Hello thanks for your feedback!
Next Pixel v2 will use only image from original box (and decal for arcade), so i guess this will match your request.
If you want to remove system logos for all systems you need to edit es-theme-next-pixel\data\systemviews\common.xml
and remove all <image name="logo">
from line 42 to line 53 included.
If you want to remove for only one system open /[system]/data/custom.xml
and add those lines to this file
<view name="system">
<image name="logo">
<path></path>
</image>
<image name="logo" region="eu">
<path></path>
</image>
<image name="logo" region="us">
<path></path>
</image>
<image name="logo" region="jp">
<path></path>
</image>
</view>