lib: system: linux: Remove metal_linux_get_device_property() helper

This function is unused and out of place in a library like libmetal. Remove
this helper function.

Signed-off-by: Andrew Davis <afd@ti.com>

lib/system/linux/device.c

@@ -647,30 +647,3 @@ int metal_generic_dev_sys_open(struct metal_device *dev)
 	(void)dev;
 	return 0;
 }
-
-int metal_linux_get_device_property(struct metal_device *device,
-				    const char *property_name,
-				    void *output, int len)
-{
-	int fd = 0;
-	int status = 0;
-	const int flags = O_RDONLY;
-	const int mode = S_IRUSR | S_IRGRP | S_IROTH;
-	struct linux_device *ldev = to_linux_device(device);
-	char path[PATH_MAX];
-
-	snprintf(path, sizeof(path), "%s/of_node/%s",
-			 ldev->sdev->path, property_name);
-	fd = open(path, flags, mode);
-	if (fd < 0)
-		return -errno;
-	if (read(fd, output, len) < 0) {
-		status = -errno;
-		close(fd);
-		return status;
-	}
-
-	status = close(fd);
-	return status < 0 ? -errno : 0;
-}
-

lib/system/linux/sys.h

@@ -101,19 +101,6 @@ extern int metal_map(int fd, off_t offset, size_t size, int expand,
 		     int flags, void **result);
 extern int metal_unmap(void *mem, size_t size);
 
-/**
- * @brief	Read a device tree property of a device
- *
- * @param[in]	device metal_device of the intended DT node
- * @param[in]	property_name name of the property to be read
- * @param[out]	output output buffer to store read data
- * @param[in]	len number of bytes to be read
- * @return	0 on success, or -errno on error.
- */
-extern int metal_linux_get_device_property(struct metal_device *device,
-					   const char *property_name,
-					   void *output, int len);
-
 #define metal_for_each_page_size_up(ps)					\
 	for ((ps) = &_metal.page_sizes[0];				\
 	     (ps) <= &_metal.page_sizes[_metal.num_page_sizes - 1];	\