chore: remove skia/dcheck.patch (#15223)

patches/common/skia/.patches.yaml

@@ -1,9 +1,5 @@
 repo: src/third_party/skia
 patches:
--
-  author: Ales Pergl <alpergl@microsoft.com>
-  file: dcheck.patch
-  description: null
 -
   author: Shelley Vohr <shelley.vohr@gmail.com>
   file: fix_font_thickness.patch

patches/common/skia/dcheck.patch

@@ -1,13 +0,0 @@
-diff --git a/include/core/SkPostConfig.h b/include/core/SkPostConfig.h
-index c34397cde6..5a55535eeb 100644
---- a/include/core/SkPostConfig.h
-+++ b/include/core/SkPostConfig.h
-@@ -18,7 +18,7 @@
-     #ifdef NDEBUG
-         #define SK_RELEASE
-     #else
--        #define SK_DEBUG
-+        #define SK_RELEASE
-     #endif
- #endif
-