disable ICUStaticMapping for ios/macos

engine/src/shell/common/switches.cc

 #include <cstdint>
 
 namespace uiwidgets {
+
+#if OS_ANDROID || OS_WIN
 extern "C" uint8_t _binary_icudtl_dat_start[];
 extern "C" uint8_t _binary_icudtl_dat_end[];
 
       _binary_icudtl_dat_end - _binary_icudtl_dat_start);
 }
+#endif
 
 std::unique_ptr<fml::Mapping> GetSymbolMapping(std::string symbol_prefix,
                                                std::string native_lib_path) {

engine/src/shell/common/switches.h

 #include "flutter/fml/mapping.h"
 
 namespace uiwidgets {
+#if OS_ANDROID || OS_WIN
+#endif
 std::unique_ptr<fml::Mapping> GetSymbolMapping(std::string symbol_prefix,
                                                std::string native_lib_path);
 }  // namespace uiwidgets