[Intel-gfx] [PATCH 10/10] drm/i915: Remove the IS_SNB_G1 define

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5752
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV              +7                 275/283              282/283
ILK                 -2              310/310              308/310
SNB              +2                 320/346              322/346
IVB                                  380/384              380/384
BYT                                  296/296              296/296
HSW              +3-1              422/428              424/428
BDW                                  318/333              318/333
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 PNV  igt_gem_userptr_blits_coherency-sync      CRASH(5, M7)PASS(2, M7)      PASS(1, M7)
 PNV  igt_gem_userptr_blits_coherency-unsync      CRASH(5, M7)PASS(3, M7)      PASS(1, M7)
 PNV  igt_gem_userptr_blits_create-destroy-sync      NRUN(1, M7)PASS(8, M7)      PASS(1, M7)
 PNV  igt_gen3_render_linear_blits      FAIL(3, M7)PASS(2, M7)      PASS(1, M7)
 PNV  igt_gen3_render_mixed_blits      FAIL(2, M7)PASS(3, M7)      PASS(1, M7)
 PNV  igt_gen3_render_tiledx_blits      FAIL(4, M7)TIMEOUT(1, M7)PASS(4, M7)      PASS(1, M7)
 PNV  igt_gen3_render_tiledy_blits      FAIL(3, M7)PASS(4, M7)      PASS(1, M7)
*ILK  igt_gem_seqno_wrap      PASS(2, M26)      DMESG_WARN(1, M26)
 ILK  igt_drv_suspend_fence-restore-tiled2untiled      DMESG_WARN(1, M26)PASS(1, M26)      DMESG_WARN(1, M26)
*SNB  igt_kms_flip_bo-too-big      BLACKLIST(1, M35)      PASS(1, M35)
*SNB  igt_kms_flip_bo-too-big-interruptible      BLACKLIST(1, M35)      PASS(1, M35)
*HSW  igt_gem_pwrite_pread_uncached-copy-performance      PASS(2, M40)      DMESG_WARN(1, M40)
*HSW  igt_kms_flip_bo-too-big      BLACKLIST(1, M40)      PASS(1, M40)
*HSW  igt_kms_flip_bo-too-big-interruptible      BLACKLIST(1, M40)      PASS(1, M40)
 HSW  igt_kms_flip_plain-flip-fb-recreate-interruptible      TIMEOUT(6, M40)PASS(5, M40)      PASS(1, M40)
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