[nrf noup] Revert "twister: Use natural sort when generating hardware map"

This reverts commit c37deeb.

This is only a temporary change, until we align our CI. To be removed
once natsort is avaialble in the NCS CI.

Signed-off-by: Robert Lubos <[email protected]>
(cherry picked from commit 9c859b6)
(cherry picked from commit ec65bcf)

Author: rlubos

scripts/pylib/twister/twisterlib/hardwaremap.py

@@ -13,7 +13,6 @@
 import scl
 import logging
 from pathlib import Path
-from natsort import natsorted
 
 from twisterlib.environment import ZEPHYR_BASE
 
@@ -358,7 +357,7 @@ def readlink(link):
 
     def save(self, hwm_file):
         # use existing map
-        self.detected = natsorted(self.detected, key=lambda x: x.serial or '')
+        self.detected.sort(key=lambda x: x.serial or '')
         if os.path.exists(hwm_file):
             with open(hwm_file, 'r') as yaml_file:
                 hwm = yaml.load(yaml_file, Loader=SafeLoader)

scripts/requirements-run-test.txt

@@ -7,7 +7,6 @@ pyocd>=0.35.0
 
 # used by twister for board/hardware map
 tabulate
-natsort
 
 # used by mcuboot
 cbor>=1.0.0