[automerger skipped] Merge "Delete unused imports in Statsd" am: 9e9ce9f9ef am: f2d7b77e42 -s ours am: 39e245b225 -s ours

am skip reason: Change-Id I80203756d714bf123978d26bbe81351a1abdc967 with SHA-1 cabd127c19 is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1373817

Change-Id: I997d1676007b4376a107a3ca6c8cef6cfbb05318