Remove extraneous vim configuration comments

Fixes bug # 1229324

Remove line containing

comment - # vim: tabstop=4 shiftwidth=4 softtabstop=4

at the top of source code files, except for files in
ceilometer/openstack/common and bin/ceilometer-rpc-zmq-receiver

Change-Id: Ic8643afbc3510c36c41871b8a840a9b9e21eaba7
Merge "Remove extraneous vim configuration comments"