Remove OC.localStorage and object method
Remove OC.localStorage and object method

* use the localstorage APIs of the browser instead
* use new Object() instead

Signed-off-by: Morris Jobke <7f550a9f4c44173a37664d938f1355f0f92a47a7@morrisjobke.de>

michaelletzgus/nextcloud-server,xx621998xx/server,Ardinis/server,xx621998xx/server,whitekiba/server,pmattern/server,whitekiba/server,endsguy/server,andreas-p/nextcloud-server,jbicha/server,andreas-p/nextcloud-server,endsguy/server,pmattern/server,Ardinis/server,Ardinis/server,Ardinis/server,andreas-p/nextcloud-server,jbicha/server,xx621998xx/server,endsguy/server,pixelipo/server,jbicha/server,pmattern/server,pixelipo/server,xx621998xx/server,xx621998xx/server,pixelipo/server,nextcloud/server,pmattern/server,pixelipo/server,endsguy/server,whitekiba/server,whitekiba/server,pmattern/server,nextcloud/server,endsguy/server,jbicha/server,pixelipo/server,jbicha/server,nextcloud/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,Ardinis/server,nextcloud/server,michaelletzgus/nextcloud-server,whitekiba/server