Revert "SliceInfo: Defining container_serialized as empty, before trying to serialize"
Revert "SliceInfo: Defining container_serialized as empty, before trying to serialize"

This reverts commit 1fd169c6697f268588733e7a6d65e80d587b51ab.

fieldOfView/Cura,hmflash/Cura,ynotstartups/Wanhao,Curahelper/Cura,Curahelper/Cura,ynotstartups/Wanhao,hmflash/Cura,fieldOfView/Cura