fix(of): remove deprecation comment to prevent false positive warning (#4724)

Author: evertbouw

src/internal/observable/of.ts

@@ -26,7 +26,6 @@ export function of<T, T2, T3, T4, T5, T6, T7, T8>(a: T, b: T2, c: T3, d: T4, e:
 /** @deprecated use {@link scheduled} instead `scheduled([a, b, c], scheduler)` */
 export function of<T, T2, T3, T4, T5, T6, T7, T8, T9>(a: T, b: T2, c: T3, d: T4, e: T5, f: T6, g: T7, h: T8, i: T9, scheduler: SchedulerLike):
   Observable<T | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9>;
-/** @deprecated use {@link scheduled} instead `scheduled([a, b, c], scheduler)` */
 export function of<T>(...args: (T | SchedulerLike)[]): Observable<T>;
 
 // TODO(benlesh): Update the typings for this when we can switch to TS 3.x