Simple way Hide and Remove Facebook message button on your profile timeline.
To know how to do that and Hide and Remove Facebook message button on your profile timeline continue watching the video
Log in Your Facebook Account
Go to your Account Profile
Click on About
Click on Edit your contact and Basic Info.
Scroll down and find BASIC INFORMATION
On Birth Year Click on Edit
Change your date of birth and make it under 18 year old, it will automatically remove message button
Click on Save Change but remember your friends can see message button
You all Done it … Lets Enjoy