tmf: Remove the TmfStateSystemBuildCompleted signal

tmf: Remove the TmfStateSystemBuildCompleted signal

Views should now use ITmfStateSystem.waitUntilBuild() instead.
Its behavior is much more predictable, both if the state history
is already built or not.

This also removes the need to pass the ID when building a new
state history. Only the trace will know the ID->statesystem
matching.

Change-Id: Ie9b5d98b0e674d607b34ae1984342030a5668b19
Signed-off-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Reviewed-on: https://git.eclipse.org/r/9505
Tested-by: Hudson CI
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>
IP-Clean: Patrick Tasse <patrick.tasse@gmail.com>