Remove include that break cuda8 and isn't need anymore in cuda9.

nouiz · nouiz · commit 9e1ebf44ff4a · 2017-08-31T15:09:04.000-04:00
diff --git a/src/gpuarray/ext_cuda.h b/src/gpuarray/ext_cuda.h
@@ -2,7 +2,6 @@
 #define LIBGPU_EXT_CUDA
 
 #include <cuda.h>
-#include <cuda_fp16.h>
 
 #include <gpuarray/config.h>
 #include <gpuarray/buffer.h>
