Remove deprecated python3-argparse from the RDEPENDS

The python3-argparse package was removed as part of the migration to the
json manifest file.  The functionality is now part of core

Signed-off-by: Derek Straka <derek@asterius.io>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-python/recipes-devtools/python/python-pyserial.inc

@@ -31,7 +31,6 @@ FILES_${PN}-win32 = " \
 "
 
 RDEPENDS_${PN} = "\
-    ${PYTHON_PN}-argparse \
     ${PYTHON_PN}-fcntl \
     ${PYTHON_PN}-io \
     ${PYTHON_PN}-logging \