remove old kDCIP3 alias

These numbers were Display P3.

Bug: skia:9792
Change-Id: I1aded49427aa0fa4bcd8a0f563b36d2180383900
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/292822
Reviewed-by: Brian Osman <[email protected]>
Commit-Queue: Mike Klein <[email protected]>

Author: Mike Klein

include/core/SkColorSpace.h

@@ -86,8 +86,6 @@ static constexpr skcms_Matrix3x3 kDisplayP3 = {{
     {  0.241182f,   0.692236f,  0.0665819f },
     { -0.00104941f, 0.0418818f, 0.784378f  },
 }};
-// TODO: skia:9792 We originally misnamed this matrix... delete this incorrect alias?
-static constexpr skcms_Matrix3x3 kDCIP3 = kDisplayP3;
 
 static constexpr skcms_Matrix3x3 kRec2020 = {{
     {  0.673459f,   0.165661f,  0.125100f  },