Remove dromaeo.* benchmarks from perf waterfall

We now have overlapping data: https://chromeperf.appspot.com/report?sid=9f295d22e6e471ddb12191a1cc59b12e5d8c0e29660595a3c72d3bb31989dd86

So it should be safe to remove all these legacy dromaeo benchmarks

Bug: 777664
Change-Id: I2d1d56ac2b59ec701475641f6b5cbd7875cd0246
Reviewed-on: https://chromium-review.googlesource.com/775587
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Ned Nguyen <nednguyen@google.com>
Cr-Commit-Position: refs/heads/master@{#517264}
NOKEYCHECK=True
GitOrigin-RevId: 177b8e6b81c434a2c5fc55f3286348d892e91500
2 files changed