Update README.md

Removed "Outlook/Files" dependency from the sample podfile.

Author: bmitchell287

README.md

@@ -56,7 +56,6 @@ The O365 iOS Connect app already contains a podfile that will get the Office 365
     pod 'ADALiOS', '~> 1.2.1'
     pod 'Office365/Outlook', '= 0.9.1'
     pod 'Office365/Discovery', '= 0.9.1'
-    pod 'Office365/Files', '= 0.9.1'
 
 	end