Update comment to getDataOnlyRemoteInputs per API review.

Bug: 37673161

Test: Comments-only change
Change-Id: I4ceaecea39ab9d34ae8f03ec1bc9eddb2e1588ab
(cherry picked from commit 434815c5b5d508ac97817e3a9b1c8da85fd3b69c)
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index e53e3da..0ec1b57 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -1290,7 +1290,7 @@
          * action is sent. These remote inputs are guaranteed to return true on a call to
          * {@link RemoteInput#isDataOnly}.
          *
-         * May return null if no data-only remote inputs were added.
+         * Returns null if there are no data-only remote inputs.
          *
          * This method exists so that legacy RemoteInput collectors that pre-date the addition
          * of non-textual RemoteInputs do not access these remote inputs.