need to remove the line, coming below the page !

How can i remove that line coming below to my page ?

Line : Black Marble imagery courtesy NASA Earth Observatory • Sources:
Esri, HERE, DeLorme, USGS, Intermap, increment P Corp., NRCAN, Esri Japan, METI, Esri China (Hong Kong), Esri (Thailand), MapmyIndia, © OpenStreetMap contributors, and the GIS User Community

Link :

These lines are the required credits for the imagery being used by your application. If you want to remove them, you need to find a different source of imagery that does not require a credit to be displayed.