How to erase this link and resize pictures ?

Hello,

Il have two questions about wanderers template :

1- See attached picture 1 : How can I erase the link "Register" in EasySocial Dropdown Menu in position top ?

2- See attached picture 2 : I have some issues with banners in position 7 : when I resize, the picture of the banners don't resize : how can I avoid this ?

3- See attached picture 3 : How can I remove the line for the title of the banners ?

Thanks a lot for your help,

Edouard