lttng-tools: drop older version

Upstream version has been updated to 2.5.0. Therefore
drop changes pulling in older source revision.

Signed-off-by: Yasir-Khan <yasir_khan@mentor.com>
lttng-ust: drop older version

Upstream version has been updated to 2.5.0. Therefore
drop changes pulling in older source revision.

Signed-off-by: Yasir-Khan <yasir_khan@mentor.com>
Merge pull request #284 from Yasir-Khan/lttng

lttng: Drop changes after version update upstream