Reduce distribution size, remove jersey container from sfc-vnfm-tacker

According to this email from An Ho:

https://lists.opendaylight.org/pipermail/sfc-dev/2016-August/003302.html

We should test removing jersey containers from sfc-vnfm-tracker.

I did some tests, and setting the jersey containers dependency scope to tests, as follows reduces the distribution size by about 6 MB.

<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-grizzly2-http</artifactId>
<version>2.22.1</version>
+ <scope>test</scope>
</dependency>