For removing the logo or branding add the parameter
modestbranding=1 to youtube URL.
modestbranding has two options 1 and 0
1-prevent the display of branding.
0-enable the option of branding
One thing is that , mouse over the video or video player a small YouTube text label will display in the upper right corner of a paused video.
In a conclusion can’t fully avoid the branding.
another option for hide the title bar is
The default value is 1.