Is there any way to remove the sound alert message? When I increase the volume with the headphones, a message appears saying that prolonged listening with a loud sound can damage the ear. 
Is there any way to remove this message on my Smasung Galaxy Note 4 ?
Thank you
As confirmed by OP the solution that worked is posted below

You can try automation.  I prefer Macrodroid, being easy to learn and free (upto 5 macros)

Create a macro 

Trigger: Notification &rarr; Notification received  &rarr; Select Application  &rarr; Google Play Music &rarr; Text content contains  &rarr; prolonged listening with a loud sound can damage the ear

Actions: 


Clear Notifications  &rarr; Clear all
Optional if you don't want notification sound ; Volume Change  &rarr; Set notification on slider scale to zero


Constraints​ : Leave blank