diff --git a/extensions/typescript-language-features/src/utils/dependentRegistration.ts b/extensions/typescript-language-features/src/utils/dependentRegistration.ts
index d6c1f6c00f9..9031a87db87 100644
--- a/extensions/typescript-language-features/src/utils/dependentRegistration.ts
+++ b/extensions/typescript-language-features/src/utils/dependentRegistration.ts
@@ -36,11 +36,6 @@ class ConditionalRegistration {
 	}
 }
 
-export interface VersionDependentRegistrationDelegate {
-	isSupportedVersion(api: API): boolean;
-	register(): vscode.Disposable;
-}
-
 export class VersionDependentRegistration {
 	private readonly _registration: ConditionalRegistration;