refactor: cleanup getCwd

Author: 9romise

lib/rules/no-restricted-call-after-await.js

@@ -116,8 +116,8 @@ module.exports = {
     }
 
     function getCwd() {
-      if (context.getCwd) {
-        return context.getCwd()
+      if (context.cwd) {
+        return context.cwd
       }
       return path.resolve('')
     }

typings/eslint/index.d.ts

@@ -350,7 +350,7 @@ export namespace Rule {
     markVariableAsUsed?(name: string): boolean
     report(descriptor: ReportDescriptor): void
 
-    // eslint@6 does not have this method.
+    /** @deprecated removed in ESLint v10 */
     getCwd?: () => string
     /** @since ESLint v8.40.0 */
     cwd: string