Make sure that you are in Draft view before following the same steps at those under Microsoft Word 2007.
Select the text before or after the line at the end notes
Go to Format menu, select borders and shading .
Check "Apply to:" menu from lower right corner , if it's parahgraph select text --- if its text then select paragraph Click OK -( the line should be removed)
if it dsnt, select the entire document and repeat the process
image source : wikihow