Remove Drive.NumberOfSharedWithMeEntries UMA
Remove Drive.NumberOfSharedWithMeEntries UMA

BUG=604686
TEST=none

Review URL: https://codereview.chromium.org/1907433004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#388704}

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