Remove inactive committers

Remove inactive committers

The TSC decided to remove the committers that have been inactive in gerit
for a year or more. If any of the people removed by this patch are
contributing to the project in other ways, and the PTL would like to keep
the gerrit rights for them, please ammend this patch.

For other updates on the committer list, please follow the procedure descrbed
in https://wiki.opnfv.org/display/DEV/Developer+governance+and+reports

JIRA: TSC-14

Change-Id: I8e52541cd3ef05b44eca8860501c447839b9a910
Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>