Remove code which deals with buffer alignment from Littlefs1File
Remove code which deals with buffer alignment from Littlefs1File

Littlefs1FileSystem should now be used only with a driver which either
doesn't care about alignment or deals with it itself (for example via
proxy AligningBlockDevice).
DISTORTEC/distortos,DISTORTEC/distortos,DISTORTEC/distortos,DISTORTEC/distortos