test: remove dead branch from run.go

It relates to an obsolete notion of 'skipped-but-okay' tests.

Fixes #12394

Change-Id: Ib7e6444dc8565e1390bd42d65d30fac136593f78
Reviewed-on: https://go-review.googlesource.com/17000
Run-TryBot: Caleb Spare <cespare@gmail.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <shurcool@gmail.com>

test/run.go

@@ -132,9 +132,6 @@ func main() {
 			failed = true
 		}
 		resCount[status]++
-		if status == "skip" && !*verbose && !*showSkips {
-			continue
-		}
 		dt := fmt.Sprintf("%.3fs", test.dt.Seconds())
 		if status == "FAIL" {
 			fmt.Printf("# go run run.go -- %s\n%s\nFAIL\t%s\t%s\n",