[Imports] cleanup broken import "fix"

[malenki]

malenki wrote on Fri, 13 Jun 2014 22:09:55 +0200:

> malenki wrote on Wed, 11 Jun 2014 16:50:05 +0200:
> 
> > Am Wed, 28 May 2014 23:16:56 +0200
> > schrieb malenki <osm_ at malenki.ch>:
> > 
> > > Has anyone objections for removing water=lake;pond and also the
> > > other proprietary data?
> > 
> > My conclusion to the discussion: I won't do anything since only
> > a minority agrees to do anything at all (if even).
> 
> Since it seems after saying the above some more people meant it
> wouldn't hurt too much do remove at least the "water=lake;pond" 
> I will do that now.

I am done; due to some conflicts (a user surveyed some TIGER and other
data meanwhile) and timeouts there are three changesets:
http://www.osm.org/changeset/22917492
http://www.osm.org/changeset/22920297
http://www.osm.org/changeset/22921689

Some selected pieces of data which show the quality of imports and
also the usefulness of all the IDs for comparing when new data is
imported:
identical ways with same timestamp imported thrice in half a year:
https://www.osm.org/#map=21/35.1426049/-113.6415879
identical ways, different timestamps, imported twice in seven minutes:
https://www.osm.org/#map=20/36.5903/-119.235499
https://www.osm.org/#map=20/37.134396/-120.006703

And a reservoir as MP with natural=water as inner ways:
https://www.osm.org/#map=16/37.29683/-120.14636
natural=water with building=yes and full address:
https://www.osm.org/way/48511080

It seems due to the "good example" of mapping water bodies with
water=lake;pond some mappers of a region where that import and "fix"
occurred were inspired to tag water bodies like this. Nearly 500
"water=lake;pond" show up around here in a area of 100x120 km:
https://www.osm.org/#map=9/35.348/-120.368