KVM: remove kvm_read_hva and kvm_read_hva_atomic
KVM: remove kvm_read_hva and kvm_read_hva_atomic

The corresponding write functions just use __copy_to_user.  Do the
same on the read side.

This reverts what's left of commit 86ab8cffb498 (KVM: introduce
gfn_to_hva_read/kvm_read_hva/kvm_read_hva_atomic, 2012-08-21)

Cc: Xiao Guangrong <6fc2b53ba6812a2fb8db97f50bf4ccdfcb5efe9c@linux.intel.com>
Signed-off-by: Paolo Bonzini <69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>
Message-Id: <1427976500-28533-1-git-send-email-69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs