CBG-4737: Remove basic auth command line flags #14916

Job	Run time
build	1m 20s
addlicense	18s
python-format	15s
test-race	6m 3s
python-lint	13s
test (macos)	5m 11s
lint	1m 47s
test (windows)	5m 16s
test-default-collection	4m 52s
test (ubuntu)	5m 16s
test-stats-definition-exporter (windows-latest)	2m 7s
test-sgcollect (macos-latest)	41s
test-stats-definition-exporter (ubuntu-latest)	1m 17s
build cache perf tool	1m 19s
test-sgcollect (ubuntu-latest)	28s
test-sgcollect (windows-latest)	3m 32s
test-stats-definition-exporter (macos-latest)	1m 12s
	41m 7s

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