Revert "Always set vm.zone_reclaim_mode = 3 in kdump kernel"
    
    Resolves: bz1896247
    Upstream: fedora
    Conflict: none
    
    commit ee160bf04dfbe207fdec57adf05a98bf9ad8a83a
    Author: Kairui Song <kasong@redhat.com>
    Date:   Mon Apr 19 23:00:10 2021 +0800
    
        Revert "Always set vm.zone_reclaim_mode = 3 in kdump kernel"
    
        This reverts commit 5633e8331866098c97e72e99f233a254fa479a4d.
    
        vm.zone_reclaim_mode may cause trashing on some machines. And after
        second thought, vm.zone_reclaim_mode is barely helpful for machines
        with high mem stress, so just revert it.
    
        Signed-off-by: Kairui Song <kasong@redhat.com>
        Acked-by: Pingfan Liu <piliu@redhat.com>
    
    Signed-off-by: Kairui Song <kasong@redhat.com>