update validators (#678)

src/validate/quilt.rs

@@ -35,15 +35,6 @@ impl super::Validator for QuiltValidator {
             ));
         }
 
-        if !archive
-            .file_names()
-            .any(|name| name.ends_with("refmap.json") || name.ends_with(".class"))
-        {
-            return Ok(ValidationResult::Warning(
-                "Quilt mod file is a source file!",
-            ));
-        }
-
         Ok(ValidationResult::Pass)
     }
 }