Remove i915_FORMAT_MOD_Y_TILED_CCS from modifier_order

Revert adding i915_FORMAT_MOD_Y_TILED_CCS to the modifiers options.
Reason for revert: Devices with internal 4K displays aren't able to drive external 4K monitors as well.

(This is a partial revert of crrev.com/c/2044490)

BUG=chromium:979736,b:153731006

Change-Id: I40a0c686ee348f94e25b399b9ab91d4d6d377bc5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2154983
Tested-by: Ilja H. Friedel <ihf@chromium.org>
Tested-by: Mark Yacoub <markyacoub@google.com>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Mark Yacoub <markyacoub@google.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Auto-Submit: Mark Yacoub <markyacoub@google.com>
Commit-Queue: Ilja H. Friedel <ihf@chromium.org>
Commit-Queue: Matthew Blecker <matthewb@chromium.org>
diff --git a/i915.c b/i915.c
index 3ed785a..92fd5b1 100644
--- a/i915.c
+++ b/i915.c
@@ -273,7 +273,6 @@
 				    uint64_t use_flags, const uint64_t *modifiers, uint32_t count)
 {
 	static const uint64_t modifier_order[] = {
-		I915_FORMAT_MOD_Y_TILED_CCS,
 		I915_FORMAT_MOD_Y_TILED,
 		I915_FORMAT_MOD_X_TILED,
 		DRM_FORMAT_MOD_LINEAR,