[mkgmap-dev] Commit r4629: remove some sea-only files from list of known hgt files to suppress warnings if they are not found

Version mkgmap-r4629 was committed by gerd on Sun, 04 Apr 2021 remove some sea-only files from list of known hgt files to suppress warnings if they are not found If the files are found they will still be used. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4629