remove background imagery "Geoimage.at MaxRes"

[wernerschka]

What steps will reproduce the problem?

1. In Austria the best available imagery for some years has been "Geoimage.at MaxRes" (in German: "Geoimage.at Höchste Auflösung". Since 2014 it has been 100% replaced by basemap.at maps (which are from the same providers: the nine Austrian provinces and their partners), havin the same content as geoimage.at but have better Image quality and can be accessed using the standard TMS-URLs. Basemap.at maps are already available within JOSM.

So there's no need to longer offer geoimage.at which additional entry in the imagery list could just baffle some JOSM user.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-01-06 17:30:31 +0100 (Wed, 06 Jan 2016)
Build-Date:2016-01-06 16:32:31
Revision:9329
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9329 de) Windows 7 32-Bit
Memory Usage: 185 MB / 989 MB (9 MB allocated, but free)
Java version: 1.8.0_73, Oracle Corporation, Java HotSpot(TM) Client VM
Dataset consistency test: No problems found

Plugins:
- HouseNumberTaggingTool (31772)
- buildings_tools (31895)
- undelete (31895)