The naïve string matching of GOROOT fails on the builders where
GOROOT is a string prefix og GOPATH.
We're not manipulating GOROOT in the tools anymore so do the easiest
thing and delete GOROOT matching.
Change-Id: I194883b9c25f38e2bfdd3eb0ccc9fade76f45549
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/165579
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
56dec8b502