ncdu/scan: remove option for memory representation
ncdu/scan: remove option for memory representation

Remove files/directories from the in memory structs of the cloud
directory. Size and Count will be recalculated and populated upwards
to the parent directories.

olihey/rclone,ncw/rclone,B4dM4n/rclone,ncw/rclone,olihey/rclone,B4dM4n/rclone,olihey/rclone,ncw/rclone,B4dM4n/rclone,olihey/rclone,ncw/rclone,B4dM4n/rclone