fpga: Also disable copy functions from the cpu driver

src/drivers/cpu/driver_cpu.c

@@ -546,7 +546,7 @@ struct _starpu_node_ops _starpu_driver_cpu_node_ops =
 	.copy_interface_to[STARPU_MPI_MS_RAM] = NULL,
 #endif
 #ifdef STARPU_USE_FPGA
-	.copy_interface_to[STARPU_FPGA_RAM] = _starpu_fpga_copy_interface_from_cpu_to_fpga,
+	//.copy_interface_to[STARPU_FPGA_RAM] = _starpu_fpga_copy_interface_from_cpu_to_fpga,
 #endif
 
 	.copy_data_to[STARPU_UNUSED] = NULL,
@@ -573,7 +573,7 @@ struct _starpu_node_ops _starpu_driver_cpu_node_ops =
 	.copy_data_to[STARPU_MPI_MS_RAM] = NULL,
 #endif
 #ifdef STARPU_USE_FPGA
-	.copy_data_to[STARPU_FPGA_RAM] = _starpu_fpga_copy_data_from_cpu_to_fpga,
+	//.copy_data_to[STARPU_FPGA_RAM] = _starpu_fpga_copy_data_from_cpu_to_fpga,
 #endif
 
 	.copy2d_data_to[STARPU_UNUSED] = NULL,