Extras: don't throw errors on overriding resonance commands when reso…

…nance_tester section isn't present

configuration/klippy/ratos.py

@@ -88,7 +88,12 @@ def register_override(self, command, func, desc):
 
 		prev_cmd = self.gcode.register_command(command, None)
 		if prev_cmd is None:
-			raise self.printer.config_error("Existing command '%s' not found in RatOS override" % (command,))
+			if command == 'TEST_RESONANCES' or command == 'SHAPER_CALIBRATE' and not self.config.has_section('resonance_tester'):
+				# No [resonance_tester] section found, don't throw an error, skip overriding.
+				logging.info("No [resonance_tester] section found, skipping override of command '%s'" % (command,))
+				return
+			else:
+				raise self.printer.config_error("Existing command '%s' not found in RatOS override" % (command,))
 		if command not in self.overridden_commands:
 			raise self.printer.config_error("Command '%s' not found in RatOS override list" % (command,))