[application] Fixing memory management for app_control_send_launch_request_async

[application] Fixing memory management for app_control_send_launch_request_async

[Bug] Order of reply and result callbacks is not defined (because both
signals come from different processes). This causes that we cannot just
release the memory in well defined way. Thus we added delay for removing
a data passed to callbacks to prevent crash.

[Verification] application tct passrate 100%
deprecate tct passrate 100%
Verified manually with application from PLM issue P200214-04877

Change-Id: Id50e80f7aecbaa9a01d46258f4f2a8eabe322409