Remove incorrect comment in find-lint.sh
The referenced issue is about `go build`, not `go get`.
@@ -24,8 +24,6 @@ fi
echo "Installing golangci-lint..."
# Make a backup of go.{mod,sum} first
-# TODO: Once go 1.13 is out, use go get's -mod=readonly option
-# https://github.com/golang/go/issues/30667
cp go.mod go.mod.bak && cp go.sum go.sum.bak
go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.19.1
