Delete unused imports in Statsd

Delete libplatformprotos since its not used.

Test: m -j
Bug: 147599928
Merged-In: I80203756d714bf123978d26bbe81351a1abdc967
Change-Id: I80203756d714bf123978d26bbe81351a1abdc967
52 files changed
tree: a586c3d1ffdd3b834232bce211e95b5d5200d48c
  1. bin/