Remove creator property from rust-clippy

This is owned by @josepalafox's BD team in GitHub.

code-scanning/properties/rust-clippy.properties.json

@@ -1,10 +1,9 @@
 {
     "name": "rust-clippy",
-    "creator": "Rust",
     "description": "A collection of lints to catch common mistakes and improve your Rust code.",
     "iconName": "rust",
     "categories": [
         "Code Scanning",
         "rust"
     ]
-}
+}