[dev.cc] build: disable API check until all systems build

Otherwise no system will get an 'ok' until they all do.

LGTM=r, dave
R=r, dave
CC=austin, dvyukov, golang-codereviews, iant, khr
https://golang.org/cl/170320044

src/run.bash

@@ -243,8 +243,8 @@ rm -f runtest
 [ "$GOOS" == nacl ] ||
 (
 echo
-echo '# Checking API compatibility.'
-time go run $GOROOT/src/cmd/api/run.go || exit 1
+echo '# SKIPPING API CHECK UNTIL ALL SYSTEMS BUILD.'
+# time go run $GOROOT/src/cmd/api/run.go || exit 1
 ) || exit $?
 
 echo