librbd/api: clean up leftovers in Migration::prepare_import()

Dead code after return and an unused variable.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
(cherry picked from commit b92ad49a35536fff87d840ffbf171aee61b05424)

diff --git a/src/librbd/api/Migration.cc b/src/librbd/api/Migration.cc
index ae95a7191c8c9bf6539358481921cfbf246ba0f2..934e7be3b8f5ac07bddeaaf81a8a46b2b5035504 100644 (file)
--- a/src/librbd/api/Migration.cc
+++ b/src/librbd/api/Migration.cc
@@ -540,7 +540,6 @@ int Migration<I>::prepare_import(
     return r;
   }
 
-  auto asio_engine = src_image_ctx->asio_engine;
   BOOST_SCOPE_EXIT_TPL(src_image_ctx) {
     src_image_ctx->state->close();
   } BOOST_SCOPE_EXIT_END;
@@ -581,11 +580,6 @@ int Migration<I>::prepare_import(
   Migration migration(src_image_ctx, dst_image_ctx, dst_migration_spec,
                       opts, nullptr);
   return migration.prepare_import();
-  if (r < 0) {
-    return r;
-  }
-
-  return 0;
 }
 
 template <typename I>