gh-133644: Remove PySys_SetArgv* for 3.15 - #136277

gh-133644: Remove PySys_SetArgv* for 3.15#136277

xuantengh wants to merge 4 commits into

python:mainpython/cpython:mainfrom

xuantengh:deprecate-pysys_setxuantengh/cpython:deprecate-pysys_setCopy head branch name to clipboard