Remove the static createArgumentsFromJSON method from the Arguments class and clean up related references. The method implementation was deleted from python/zingg/client.py, docs references were removed from docs/pythonOss/markdown/_autosummary/zingg.client.Arguments.md and python/docs/_autosummary/zingg.client.Arguments.rst, and the corresponding unit test (test_createArgumentsFromJSON) was removed from test/testFebrl/testArgs.py.