Remove SK_IMAGE_MAKE_COLOR_TYPE_AND_SPACE_USE_SOURCE_CONTEXT
Remove SK_IMAGE_MAKE_COLOR_TYPE_AND_SPACE_USE_SOURCE_CONTEXT

This staging flag is no longer used by Chrome.

Bug: skia:104662
Change-Id: Ib788b3bb4a975e496d72729fa47fb52952ab6a12
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/310336
Commit-Queue: Robert Phillips <95e8ac5504948c7bf91b22c16a8dbb7ae7c66bfd@google.com>
Reviewed-by: Robert Phillips <95e8ac5504948c7bf91b22c16a8dbb7ae7c66bfd@google.com>
Auto-Submit: Adlai Holler <74c8d5b16bacf4a5997d6535bb4043bbdfe052ea@google.com>

google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia