REGRESSION (270723@main): [ iOS17 macOS Debug ] TestWebKitAPI.Evaluat…

…eJavaScript.JavaScriptInMissingFrameError is a consistent crash

https://bugs.webkit.org/show_bug.cgi?id=265070
rdar://118583083

Reviewed by Pascoe.

This API test is passing an invalid frame identifier to `evaluateJavaScript:inFrame:`, so we trip over
the debug assertion I added in 270723@main. We should just remove it for now.

* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::sendToWebPage):

Canonical link: https://commits.webkit.org/271225@main

Source/WebKit/UIProcess/WebPageProxy.cpp

@@ -13235,8 +13235,7 @@ void WebPageProxy::sendToWebPage(std::optional<FrameIdentifier> frameID, F&& sen
                 sendFunction(*remotePageProxy);
                 return;
             }
-        } else
-            ASSERT_NOT_REACHED();
+        }
     }
     sendFunction(*this);
 }