Refs #15626 CHM; remove code related to Google Maps api key

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20997 a0171fae-0946-0410-966d-b1775066cd26
Refs #15626 CHM; cleanup chm_be maps engine JS file

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20998 a0171fae-0946-0410-966d-b1775066cd26