uxrce_dds_client: remove unused msgdir arg from script

src/modules/uxrce_dds_client/CMakeLists.txt

@@ -117,7 +117,6 @@ else()
 
 	add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/dds_topics.h
 		COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/generate_dds_topics.py
-			--topic-msg-dir ${PX4_SOURCE_DIR}/msg
 			--client-outdir ${CMAKE_CURRENT_BINARY_DIR}
 			--dds-topics-file ${CMAKE_CURRENT_SOURCE_DIR}/dds_topics.yaml
 			--template_file ${CMAKE_CURRENT_SOURCE_DIR}/dds_topics.h.em

src/modules/uxrce_dds_client/generate_dds_topics.py

@@ -43,9 +43,6 @@ import em
 import yaml
 
 parser = argparse.ArgumentParser()
-parser.add_argument("-m", "--topic-msg-dir", dest='msgdir', type=str,
-                    help="Topics message, by default using relative path 'msg/'", default="msg")
-
 parser.add_argument("-y", "--dds-topics-file", dest='yaml_file', type=str,
                     help="Setup topics file path, by default using 'dds_topics.yaml'")