Removing Unwanted Graphics

[telumenor]

Hi, everyone.   I've found a tremendous wealth of information here that has helped me tons in tweaking my bloggish layout.   Thank you to all!!!

I've got one lingering pain in the butt that I can't seem to solve.  Can anybody tell me how to lose these things? 

I've got a Plus account and am using the Powell Street layout.     Thanks, guys!