Add missing tests for inline input part.

Remove comment due to test is ready.

Bug: 146453105
Test: atest CtsInputMethodTestCases:android.view.inputmethod.cts.InlineSuggestionInfoTest
Test: atest CtsInputMethodTestCases:android.view.inputmethod.cts.InlineSuggestionsRequestTest
Change-Id: I968ab360cae93c895e6cfeae76e15c2205f5a7e6

core/java/android/view/inputmethod/InlineSuggestionInfo.java

@@ -80,7 +80,6 @@ public final class InlineSuggestionInfo implements Parcelable {
             @NonNull InlinePresentationSpec presentationSpec,
             @NonNull @Source String source,
             @Nullable String[] autofillHints) {
-        // TODO(b/147394280): Add CTS test for the type field.
         return new InlineSuggestionInfo(presentationSpec, source, autofillHints, TYPE_SUGGESTION);
     }