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Remove flags that are no longer useful. #125

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Run time

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Job	Run time
android	1m 4s
linux-asan	1m 9s
linux-msan	1m 20s
linux	56s
linux-tsan	1m 42s
linux-ubsan	59s
macos	35s
web	1m 53s
windows	5m 8s
	14m 46s