delete string for osm:cyclemap (#7405)
delete string for osm:cyclemap (#7405)

As the OSM:cyclemaps implementation was removed (see PR #6640 and I #6610) the string can also been removed.
He is not more referenced.
Bananeweizen/cgeo,cgeo/cgeo,tobiasge/cgeo,S-Bartfast/cgeo,Bananeweizen/cgeo,rsudev/c-geo-opensource,rsudev/c-geo-opensource,S-Bartfast/cgeo,matej116/cgeo,rsudev/c-geo-opensource,tobiasge/cgeo,S-Bartfast/cgeo,auricgoldfinger/cgeo,matej116/cgeo,tobiasge/cgeo,Bananeweizen/cgeo,cgeo/cgeo,matej116/cgeo,auricgoldfinger/cgeo,auricgoldfinger/cgeo,cgeo/cgeo,cgeo/cgeo