hg: jdk/submit: 8222510: Small cleanup for JDK launcher's make file

[manc at google.com]

Changeset: b057e09eef80
Author:    manc
Date:      2019-04-15 18:37 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/b057e09eef80

8222510: Small cleanup for JDK launcher's make file
Reviewed-by: clanger, erikj

! make/launcher/Launcher-java.base.gmk
! make/launcher/LauncherCommon.gmk