since the option to remove the bw file link has been removed.

This reverts commit 5b33d3a3.
Since the option to rm the bw file link has been removed from the
cli.

This reverts commit 199c9274.
We decided that this option is not needed when the header include
statistics about the percentage of relays that failed.

and rm condition about whether the min percentage of measured
relays was reached. It will be checked when writing the file.
Also pass the arg rm_link to write.

that are not away from some other X secs.

from some other X secs.
In #27338 it was implemented to do not include relays in the
bandwidth files that does not have at least 2 measurements that
are X secs away from each other.
It was implemented removing any results that were not X secs away
from each other, when all the results should be keep when there is
at least one away from the others, as commented in #28061.

When there's at least one result that is X secs away from any other,
all the results should be keep.

when the arg is provided.
Also, use list when filtering the results and add debugging lines

to 3.5, we stop supporting 3.4

and results away

and do not include them as data files in python packages,
since system packages will then include them in /usr

has been removed. Also add logging

and do not use classmethod for it, since it is only a comparison