Getting rid of Blog Title and Tag line

I have a blog running on the ProSense Theme. I have now created my own header image and added the blog title and tag line to it in a nice writing just the way I want it.
Is it possible to get rid of the Title and tag line that automatically appear on the header? I know I could just delete the Title in Tag Line in the general settings, but wouldn’t that totally effect the way Google and any other search engines find me? There must be another way to make them invisible or something…
Any ideas?
Here is the blog (at the moment I have just a picture inserted, the new header looks much more professional) https://www.healthydietweightloss.com