fix spurious include to land the cagra diff (facebookresearch#3502)

Summary:
Pull Request resolved: facebookresearch#3502

include probably added by vscode

Reviewed By: mengdilin

Differential Revision: D58411537

fbshipit-source-id: 3035f690d26decc937fb492c54ffa2f974ee2db8

Author: mdouze

CMakeLists.txt

@@ -46,8 +46,6 @@ project(faiss
   LANGUAGES ${FAISS_LANGUAGES})
 include(GNUInstallDirs)
 
-set(CMAKE_INSTALL_PREFIX "$ENV{CONDA_PREFIX}")
-
 set(CMAKE_CXX_STANDARD 17)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

faiss/IndexHNSW.cpp

@@ -24,7 +24,6 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <cstdint>
-#include "impl/HNSW.h"
 
 #include <faiss/Index2Layer.h>
 #include <faiss/IndexFlat.h>

faiss/gpu/test/test_cagra.py

@@ -6,7 +6,6 @@
 import unittest
 
 import faiss
-import numpy as np
 
 from faiss.contrib import datasets, evaluation
 
@@ -57,8 +56,9 @@ def do_interop(self, metric):
 
         evaluation.check_ref_knn_with_draws(Dref, Iref, Dnew, Inew, k)
 
-        faiss.write_index(cpu_index, "index_hnsw_cagra.index")
-        deserialized_index = faiss.read_index("index_hnsw_cagra.index")
+        deserialized_index = faiss.deserialize_index(
+            faiss.serialize_index(cpu_index))
+
         gpu_index = faiss.index_cpu_to_gpu(res, 0, deserialized_index)
         Dnew2, Inew2 = gpu_index.search(ds.get_queries(), k)