hg: jdk/sandbox: Remove test applications

[erik.gahlin at oracle.com]

Changeset: d284ff23fa4c
Author:    egahlin
Date:      2019-09-30 15:35 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/d284ff23fa4c

Remove test applications

! src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/DCmdStart.java
- src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/Health.java
- src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/Monitor.java