JFR: Time-fixed recordings should be released at the end of the duration when destination is set

The chunk files in the repository are not removed after the end of the duration for the time-fixed recordings:

For example if we start a time-fixed recording for the duration of 2mins.

 $ date ; /opt/apps/java/jdk170_85AC/bin/sparcv9/jcmd 7460 JFR.start name=Test01 settings=profile duration=2m filename=/var/tmp/Test01.jfr

Monday, February 29, 2016 11:39:16 AM PST
7460:
Started recording 1. The result will be written to:
/var/tmp/Test01.jfr

After the 2 min recording has completed we can still see the chunk files in the
repository:
 $ date ; ls -l /var/tmp/2016_02_29_11_37_26_7460/*
Monday, February 29, 2016 11:41:21 AM PST
-rw------- 1 app app 860568 Feb 29 11:39
/var/tmp/2016_02_29_11_37_26_7460/2016_02_29_11_37_26_7460_0.jfr
 -rw------- 1 app app 615747 Feb 29 11:41
/var/tmp/2016_02_29_11_37_26_7460/2016_02_29_11_39_16_7460_0.jfr
 -rw------- 1 app app 0 Feb 29 11:41
/var/tmp/2016_02_29_11_37_26_7460/2016_02_29_11_41_16_7460_0.jfr
 -rw------- 1 app app 0 Feb 29 11:41
 /var/tmp/2016_02_29_11_37_26_7460/2016_02_29_11_41_16_7460_0.jfr.part