source.ctf.lttng-live: clean-up: don't restart stream iteration

source.ctf.lttng-live: clean-up: don't restart stream iteration

Don't restart the iteration on a stream array when a stream has
to be removed. The contents of the array's current position are
replaced by the contents of the last position in the array. Thus,
we can continue the iteration from the current index.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: Ia465f2995d6ee0ad1241063bc62e92cbf40745eb
Reviewed-on: https://review.lttng.org/c/babeltrace/+/2263
CI-Build: Simon Marchi <simon.marchi@efficios.com>
Tested-by: jenkins <jenkins@lttng.org>
Reviewed-by: Simon Marchi <simon.marchi@efficios.com>