With Windows 10 1803 build, Microsoft is dropping a "Microsoft Edge" shortcut on the desktop for every user profile.

By adding the below registry we can disable the edge icon from getting created on the desktop for each user profile. You can use deployment tools like MDT or SCCM to add the registry before capturing the image and this would prevent the Edge icon from being created on the desktop.

KEY: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer
Value: DisableEdgeDesktopShortcutCreation 
Data: 1
Type: REG_DWORD