Remove `AnalyzeUseNewUpload` FF and make its behaviour the default #4308

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Canceling since a higher priority waiting request for PR Check - Build mode autobuild-refs/pull/3309/merge exists

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Canceling since a higher priority waiting request for PR Check - Build mode autobuild-refs/pull/3309/merge exists

Cannot build an overlay database because build-mode is set to "autobuild" instead of "none". Falling back to creating a normal full database instead.