[TTS] Remove redundant condition check

operator bool() and is_bound() are the same for InterfacePtr.

Bug: None
Change-Id: I29e311d6e1f80ba49d3ebc15a0b5ad619aff2621
Reviewed-on: https://chromium-review.googlesource.com/c/1471377Reviewed-by: Donn Denman <donnd@chromium.org>
Commit-Queue: Donn Denman <donnd@chromium.org>
Commit-Queue: Shimi Zhang <ctzsm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#632040}

components/contextual_search/content/renderer/overlay_js_render_frame_observer.cc

@@ -45,8 +45,7 @@ void OverlayJsRenderFrameObserver::EnableJsApi(bool should_enable) {
 }
 
 bool OverlayJsRenderFrameObserver::EnsureServiceConnected() {
-  if (render_frame() && (!contextual_search_js_api_service_ ||
-                         !contextual_search_js_api_service_.is_bound())) {
+  if (render_frame() && !contextual_search_js_api_service_) {
     render_frame()->GetRemoteInterfaces()->GetInterface(
         &contextual_search_js_api_service_);
     return true;