[Impeller] impellerc: delete unused code (#49061)

Author: dnfield

impeller/compiler/reflector.cc

@@ -329,9 +329,6 @@ std::shared_ptr<RuntimeStageData> Reflector::GenerateRuntimeStageData() const {
       options_.target_platform              //
   );
   data->SetShaderData(shader_data_);
-  if (sksl_data_) {
-    data->SetSkSLData(sksl_data_);
-  }
 
   // Sort the IR so that the uniforms are in declaration order.
   std::vector<spirv_cross::ID> uniforms =

impeller/compiler/reflector.h

@@ -96,7 +96,6 @@ class Reflector {
   const Options options_;
   const std::shared_ptr<const spirv_cross::ParsedIR> ir_;
   const std::shared_ptr<fml::Mapping> shader_data_;
-  const std::shared_ptr<fml::Mapping> sksl_data_;
   const CompilerBackend compiler_;
   std::unique_ptr<const nlohmann::json> template_arguments_;
   std::shared_ptr<fml::Mapping> reflection_header_;