Fix compilation warning. Remove utilities in vineyard store ffi. (#861)

* Fix compiler warnings. Remove vineyard loader/reader that are no longer
used.

Changes to be committed:
	modified:   CMakeLists.txt
	modified:   global_store_ffi.cc
	deleted:    htap_loader.cc
	deleted:    htap_reader.c
	deleted:    htap_stream_generator.cc
	deleted:    htap_stream_loader.cc
	modified:   property_graph_stream.cc
	modified:   property_graph_stream.h

* Remove htap_mc_reader, which is no longer used.

Changes to be committed:
	modified:   ../CMakeLists.txt
	deleted:    ../htap_mc_reader.c

interactive_engine/src/executor/runtime/native/CMakeLists.txt

@@ -61,25 +61,6 @@ if(BUILD_SHARED_LIBS)
     install_vineyard_target(native_store)
 endif()
 
-add_executable(vineyard_htap_reader htap_reader.c)
-target_link_libraries(vineyard_htap_reader native_store ${VINEYARD_LIBRARIES} Threads::Threads)
-install_vineyard_target(vineyard_htap_reader)
 
-add_executable(vineyard_htap_mc_reader htap_mc_reader.c)
-target_link_libraries(vineyard_htap_mc_reader native_store ${VINEYARD_LIBRARIES} Threads::Threads)
-install_vineyard_target(vineyard_htap_mc_reader)
 
-add_executable(vineyard_htap_loader htap_loader.cc)
-target_include_directories(vineyard_htap_loader PRIVATE ${VINEYARD_INCLUDE_DIRS})
-target_link_libraries(vineyard_htap_loader native_store ${VINEYARD_LIBRARIES} Threads::Threads)
-install_vineyard_target(vineyard_htap_loader)
 
-add_executable(vineyard_htap_stream_loader htap_stream_loader.cc)
-target_include_directories(vineyard_htap_stream_loader PRIVATE ${VINEYARD_INCLUDE_DIRS})
-target_link_libraries(vineyard_htap_stream_loader native_store ${VINEYARD_LIBRARIES} Threads::Threads)
-install_vineyard_target(vineyard_htap_stream_loader)
-
-add_executable(vineyard_htap_stream_generator htap_stream_generator.cc)
-target_include_directories(vineyard_htap_stream_generator PRIVATE ${VINEYARD_INCLUDE_DIRS})
-target_link_libraries(vineyard_htap_stream_generator native_store ${VINEYARD_LIBRARIES} Threads::Threads)
-install_vineyard_target(vineyard_htap_stream_generator)

interactive_engine/src/executor/runtime/native/global_store_ffi.cc

@@ -494,7 +494,7 @@ PartitionId get_partition_id(GraphHandle graph, VertexId v) {
   htap_impl::GraphHandleImpl* casted_graph =
       static_cast<htap_impl::GraphHandleImpl*>(graph);
 
-  int fid = casted_graph->vid_parser.GetFid((htap_impl::VID_TYPE)v);
+  auto fid = casted_graph->vid_parser.GetFid((htap_impl::VID_TYPE)v);
   LabelId label_id =
       casted_graph->vid_parser.GetLabelId((htap_impl::VID_TYPE)v);
   htap_impl::VID_TYPE offset =