[Intel-gfx] [PATCH 5/5] drm/i915: Drop unused position fields (v2)

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  364/364              364/364
ILK              +4-3              360/366              361/366
SNB                 -2              448/450              446/450
IVB                 -2              497/498              495/498
BYT                                  289/289              289/289
HSW                 -1              563/564              562/564
BDW                                  417/417              417/417
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*ILK  igt_kms_flip_nonexisting-fb      PASS(2, M26)      DMESG_WARN(1, M26)
 ILK  igt_kms_flip_rcs-flip-vs-panning-interruptible      DMESG_WARN(1, M26)PASS(2, M26)      DMESG_WARN(1, M26)
 ILK  igt_drv_suspend_fence-restore-untiled      DMESG_WARN(1, M26)PASS(6, M37M26)      PASS(1, M26)
 ILK  igt_kms_flip_bcs-flip-vs-modeset-interruptible      DMESG_WARN(1, M26)PASS(6, M37M26)      PASS(1, M26)
*ILK  igt_kms_flip_busy-flip-interruptible      DMESG_WARN(2, M26)PASS(5, M37M26)      NSPT(1, M26)
 ILK  igt_kms_flip_flip-vs-rmfb-interruptible      DMESG_WARN(1, M26)PASS(6, M37M26)      PASS(1, M26)
 ILK  igt_kms_flip_plain-flip-ts-check-interruptible      DMESG_WARN(1, M26)PASS(1, M26)      DMESG_WARN(1, M26)
 ILK  igt_kms_flip_rcs-flip-vs-dpms      DMESG_WARN(1, M26)PASS(5, M37M26)      PASS(1, M26)
*SNB  igt_kms_mmio_vs_cs_flip_setplane_vs_cs_flip      PASS(2, M35)      DMESG_WARN(1, M35)
*SNB  igt_kms_rotation_crc_sprite-rotation      PASS(2, M35)      DMESG_WARN(1, M35)
*IVB  igt_kms_mmio_vs_cs_flip_setplane_vs_cs_flip      PASS(2, M34)      DMESG_WARN(1, M34)
*IVB  igt_kms_rotation_crc_sprite-rotation      PASS(2, M34)      DMESG_WARN(1, M34)
*HSW  igt_kms_mmio_vs_cs_flip_setplane_vs_cs_flip      PASS(2, M40)      DMESG_WARN(1, M40)
Note: You need to pay more attention to line start with '*'