- refactor: use eval to reduce library dependencies

bin/slubsipbuilderbagit.pl

@@ -68,7 +68,6 @@ package SLUB::LZA::SIPBuilderBagIt;
     use MARC::Record;
     use Path::Tiny;
     use Term::ANSIColor;         # colored print
-    use Try::Tiny;
     use XML::LibXML;
     use XML::XPath;
 
@@ -327,12 +326,13 @@ package SLUB::LZA::SIPBuilderBagIt;
         my $parser = XML::LibXML->new;
         my $doc    = $parser->parse_file($rightsFilePath);
 
-        my $success = try { $schema->validate($doc); 1 } catch {};
-        if ($success) {
-            return 1;
-        } else {
+        eval {
+            $schema->validate($doc);
+        };
+        if ($@) { # error
             die "File $rightsName failed validation: $@";
         };
+        return 1;
     }
 
     sub print_scalar_data($$$$){