drm/i915: Remove unnecessary include

intel-iommu.h is not needed in drm/i915 anymore. Remove its include.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20220514014322.2927339-5-baolu.lu@linux.intel.comSigned-off-by: Joerg Roedel <jroedel@suse.de>

drivers/gpu/drm/i915/display/intel_display.c

@@ -27,7 +27,6 @@
 #include <acpi/video.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
-#include <linux/intel-iommu.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/dma-resv.h>

drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c

@@ -6,7 +6,6 @@
 
 #include <linux/dma-resv.h>
 #include <linux/highmem.h>
-#include <linux/intel-iommu.h>
 #include <linux/sync_file.h>
 #include <linux/uaccess.h>