Debugger: Stop launching when pressing the [x] on the Launching bar

Change-Id: I047652b551c920bd89916de14d202dfccd44ed72
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Remove an unused member of DebuggerRunControlPrivate

Change-Id: Ib294822b5bc24fd327993a092cb0fddc8db66b01
Reviewed-by: hjk <hjk121@nokiamail.com>