zsmallc: remove old object read API · v1

zram remains the last user of old zsmalloc object read API, that performed linearisation on the zsmalloc side. There is a new SG-list API, that has a bunch of benefits. Switch zram to SG-list zsmalloc

There are no users left of the old API, all have switched to SG-list object read API. Remove it. Signed-off-by: Sergey Senozhatsky senozhatsky@chromium.org — include/linux/zsmalloc.h | 4 —