Delete SkImageDecoder_empty

public.bzl

Index: public.bzl
diff --git a/public.bzl b/public.bzl
index ba10d3127ae6242b4d7bbc78822794eccdceb19d..afe41d14898b99672f5c71df8771ae5f0eb3d35f 100644
--- a/public.bzl
+++ b/public.bzl
@@ -164,7 +164,6 @@ BASE_SRCS_UNIX = struct(
         "src/ports/SkFontMgr_empty_factory.cpp",
         "src/ports/SkFontMgr_fontconfig.cpp",
         "src/ports/SkFontMgr_fontconfig_factory.cpp",
-        "src/ports/SkImageDecoder_empty.cpp",
         "src/ports/SkImageEncoder_none.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
@@ -212,7 +211,6 @@ BASE_SRCS_ANDROID = struct(
         "src/ports/SkFontMgr_custom_embedded_factory.cpp",
         "src/ports/SkFontMgr_custom_empty_factory.cpp",
         "src/ports/SkFontMgr_empty_factory.cpp",
-        "src/ports/SkImageDecoder_empty.cpp",
         "src/ports/SkImageEncoder_none.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
@@ -269,7 +267,6 @@ BASE_SRCS_IOS = struct(
         "src/ports/SkFontMgr_custom_embedded_factory.cpp",
         "src/ports/SkFontMgr_custom_empty_factory.cpp",
         "src/ports/SkFontMgr_empty_factory.cpp",
-        "src/ports/SkImageDecoder_empty.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
     ],