Make std* blocking file-descriptors.

runtime/bin/platform_android.cc

Index: runtime/bin/platform_android.cc
diff --git a/runtime/bin/platform_android.cc b/runtime/bin/platform_android.cc
index dbf56d228882169e8d054b82b6ca322d07134936..b30e46db45a5e86b4f22cdaba932970d5fa6b301 100644
--- a/runtime/bin/platform_android.cc
+++ b/runtime/bin/platform_android.cc
@@ -66,24 +66,6 @@ void Platform::FreeEnvironment(char** env, intptr_t count) {
   delete[] env;
 }
 
-
-void Platform::PrintBlocking(FILE* file, const char* format, ...) {
-  int fd = fileno(file);
-  FDUtils::SetBlocking(fd);
-  va_list args;
-  va_start(args, format);
-  vfprintf(file, format, args);
-  fflush(file);
-  va_end(args);
-  FDUtils::SetNonBlocking(fd);
-}
-
-
-void Platform::Cleanup() {
-  FDUtils::SetBlocking(fileno(stdout));
-  FDUtils::SetBlocking(fileno(stderr));
-}
-
 }  // namespace bin
 }  // namespace dart