fix!: remove deprecated nodeType property (eslint#265)

Author: Pixel998

packages/core/src/types.ts

@@ -575,12 +575,6 @@ export interface LintMessage {
 	/** The ID of the message in the rule's meta. */
 	messageId?: string | undefined;
 
-	/**
-	 * Type of node.
-	 * @deprecated `nodeType` is deprecated and will be removed in the next major version.
-	 */
-	nodeType?: string | undefined;
-
 	/** If `true` then this is a fatal error. */
 	fatal?: true | undefined;