Remove example ID check from yamale validator because we already do it better in the main validtor.

Author: Laren-AWS

aws_doc_sdk_examples_tools/metadata_validator.py

@@ -81,11 +81,7 @@ def get_name(self):
         return "valid example ID"
 
     def _is_valid(self, value: str):
-        if not re.fullmatch("^[\\da-z-]+(_[\\da-zA-Z]+)+$", value):
-            return False
-        else:
-            svc = value.split("_")[0]
-            return (svc == "cross") or (svc in self.services)
+        return re.fullmatch("^[\\da-z-]+(_[\\da-zA-Z-]+)+$", value)
 
 
 class BlockContent(Validator):