fix metadata

Author: 3nids

oqtopus/metadata.txt

@@ -12,7 +12,6 @@ tracker=https://github.com/opengisch/oqtopus/issues
 repository=https://github.com/opengisch/oqtopus
 hasProcessingProvider=no
 tags=database
-homepage=https://www.opengisch.ch/
 category=Database
 icon=icons/oqtopus-logo.png
 experimental=True