diff --git a/test-workspace/tsc/passedFixtures/shared.d.ts b/test-workspace/tsc/passedFixtures/shared.d.ts
index 26abe5a11b..e9865589bf 100644
--- a/test-workspace/tsc/passedFixtures/shared.d.ts
+++ b/test-workspace/tsc/passedFixtures/shared.d.ts
@@ -3,8 +3,3 @@ type IfEquals<T, U, Y = unknown, N = never> =
 	(<G>() => G extends T ? 1 : 2) extends
 	(<G>() => G extends U ? 1 : 2) ? Y : N;
 export declare function exactType<T, U>(draft: T & IfEquals<T, U>, expected: U & IfEquals<T, U>): IfEquals<T, U>;
-
-// https://stackoverflow.com/a/49928360
-type IfNotAny<T> = 0 extends 1 & T ? never : T;
-type IfNotUndefined<T> = Exclude<T, undefined> extends never ? never : T;
-export declare function isNotAnyOrUndefined<T>(value: IfNotAny<IfNotUndefined<T>>): void;