Removing the directory 'localstorage' that is inside the top-level
'localstorage' directory, and moving the content one level up in the
file hierarchy.
Pick-to: 6.2
Change-Id: I97cf1ff92be9860d9a92bce66c88af927618e2b0
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>