cpp cleanup

Author: liaopeiyuan

csrc/cpu/knn_cpu.h

@@ -3,7 +3,6 @@
 #include <torch/extension.h>
 #include "utils/neighbors.cpp"
 #include <iostream>
-#include "compat.h"
 
 torch::Tensor knn_cpu(torch::Tensor support, torch::Tensor query, 
 			 int64_t k, int64_t n_threads);

csrc/cpu/radius_cpu.h

@@ -3,7 +3,6 @@
 #include <torch/extension.h>
 #include "utils/neighbors.cpp"
 #include <iostream>
-#include "compat.h"
 
 torch::Tensor radius_cpu(torch::Tensor query, torch::Tensor support,
 			 			 double radius, int64_t max_num, int64_t n_threads);