fix: remove unused kdl language configuration

Author: hverlin

package.json

@@ -74,9 +74,6 @@
 					"mise.lock"
 				],
 				"configuration": "./syntaxes/toml-language-configuration.json"
-			},
-			{
-				"id": "usage-kdl"
 			}
 		],
 		"tomlValidation": [
@@ -99,7 +96,6 @@
 				"path": "./syntaxes/toml-language.json"
 			},
 			{
-				"language": "usage-kdl",
 				"scopeName": "source.usage.kdl",
 				"path": "./syntaxes/usage-kdl.json"
 			},