Revert "Roll src/third_party/skia 121750c..046f989 (4 commits) (flutter-team-archive#16482)"

This reverts commit e2bd8e4.

Author: NoamDev

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '046f9893b953854680d6206c2452e79fafa35340',
+  'skia_revision': '121750c2efff175d9861b0232ca613f7e8d5b6d5',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 5860733e6560c59b731d5cb3b80d3817
+Signature: d32699f8b13c6ed276cae754358ea5bf
 
 UNUSED LICENSES:
 
@@ -997,7 +997,6 @@ FILE: ../../../third_party/skia/infra/bots/assets/armhf_sysroot/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/bloaty/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/cast_toolchain/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/ccache_linux/VERSION
-FILE: ../../../third_party/skia/infra/bots/assets/ccache_mac/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/chromebook_arm_gles/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/chromebook_x86_64_gles/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/clang_linux/VERSION