Remove non-inclusive language from infra/go

Killed terms:
- s*nity
- d*mmy

BUG=chromium:1172402
TEST=go test ./...

Change-Id: Ia9cfb3e26123795b2a340d6f43d25c92842932bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/go/+/2659662
Tested-by: Jack Neus <jackneus@google.com>
Auto-Submit: Jack Neus <jackneus@google.com>
Reviewed-by: George Engelbrecht <engeg@google.com>
Commit-Queue: Jack Neus <jackneus@google.com>
6 files changed