Drop this

error-prone-contrib/src/main/java/tech/picnic/errorprone/refasterrules/StreamRules.java

@@ -246,7 +246,7 @@ Optional<S> after(Stream<T> stream, Function<? super T, S> function) {
   }
 
   /** In order to test whether a stream has any element, simply try to find one. */
-  // XXX: This this rule assumes that any matched `Collector` does not perform any filtering.
+  // XXX: This rule assumes that any matched `Collector` does not perform any filtering.
   // (Perhaps we could add a `@Matches` guard that validates that the collector expression does not
   // contain a `Collectors#filtering` call. That'd still not be 100% accurate, though.)
   static final class StreamIsEmpty<T> {