gvt_pin_guest_page extracted some of the gvt_dma_map_page functionality:
commit 79e542f5af79 ("drm/i915/kvmgt: Support setting dma map for huge pages")

And yet, part of it was reintroduced in:
commit 39b4cbadb9a9 ("drm/i915/kvmgt: Check the pfn got from vfio_pin_pages")

Causing kvmgt part to no longer build. Let's remove it.

Reported-by: Tomasz Lis <tomasz....@intel.com>
Signed-off-by: Michał Winiarski <michal.winiar...@intel.com>
Cc: Changbin Du <changbin...@intel.com>
Cc: Zhenyu Wang <zhen...@linux.intel.com>
---
 drivers/gpu/drm/i915/gvt/kvmgt.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 718ab307a500..4d2f53ae9f0f 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -185,12 +185,6 @@ static int gvt_dma_map_page(struct intel_vgpu *vgpu, 
unsigned long gfn,
        if (ret)
                return ret;
 
-       if (!pfn_valid(pfn)) {
-               gvt_vgpu_err("pfn 0x%lx is not mem backed\n", pfn);
-               vfio_unpin_pages(mdev_dev(vgpu->vdev.mdev), &gfn, 1);
-               return -EINVAL;
-       }
-
        /* Setup DMA mapping. */
        *dma_addr = dma_map_page(dev, page, 0, size, PCI_DMA_BIDIRECTIONAL);
        ret = dma_mapping_error(dev, *dma_addr);
-- 
2.17.1

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