Build: remove --skip-googlemaps build option

The scripts/build.sh script has an option --skip-googlemaps. Introduced
in 2017 at a moment the Travis Mac build failed on this. Interestingly,
when Mac building of the maps plugin was possible again (commit 79e3f69f48)
the --skip-googlemaps stayed. Obviously, this hack was never intended
to be used for anything else then getting it passed Travis on
some point in time for a specific Mac build.

So, remove this option.

Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>

scripts/build.sh

@@ -59,17 +59,13 @@ while [[ $# -gt 0 ]] ; do
 			# we are building an AppImage as by product
 			CREATE_APPDIR="1"
 			;;
-		-skip-googlemaps)
-			# hack for Travix Mac build
-			SKIP_GOOGLEMAPS="1"
-			;;
 		-release)
 			# don't build Debug binaries
 			DEBUGRELEASE="Release"
 			;;
 		*)
 			echo "Unknown command line argument $arg"
-			echo "Usage: build.sh [-no-bt] [-build-deps] [-build-with-webkit] [-mobile] [-desktop] [-both] [-create-appdir] [-skip-googlemaps] [-release]"
+			echo "Usage: build.sh [-no-bt] [-build-deps] [-build-with-webkit] [-mobile] [-desktop] [-both] [-create-appdir] [-release]"
 			exit 1
 			;;
 	esac
@@ -421,7 +417,6 @@ else
 	PRINTING="-DNO_PRINTING=ON"
 fi
 
-if [ "$SKIP_GOOGLEMAPS" != "1" ] ; then
 # build the googlemaps map plugin
 
 cd $SRC
@@ -441,7 +436,6 @@ if [ "$SKIP_GOOGLEMAPS" != "1" ] ; then
 make -j4
 make install
 popd
-fi
 
 # finally, build Subsurface