remove unused functions our_version and check_multiarch_dpkg

multistrap

@@ -503,11 +503,6 @@ sub shellescape {
     return "'$string'";
 }
 
-sub our_version {
-	my $query = `dpkg-query -W -f='\${Version}' multistrap 2>/dev/null`;
-	($query ne "") ? return $query : return "2.1.15";
-}
-
 sub add_extra_packages {
 	my $apt_get = shift;
 	my $cachedir = shift;
@@ -1325,13 +1320,6 @@ sub cascade {
 	uniq_sort (\@extrapkgs);
 }
 
-# returns zero on success, non-zero on fail
-sub check_multiarch_dpkg {
-	my $retval = system ("dpkg --print-foreign-architectures > /dev/null 2>&1");
-	$retval >>=8;
-	return $retval;
-}
-
 sub system_fatal {
 	my $cmd = shift;
 	my $retval = system ("$cmd");