webrtc: fix Safari addIceCandidate crash

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2039>

net/webrtc/gstwebrtc-api/package.json

@@ -58,7 +58,6 @@
     "webpack-dev-server": "4.15.1"
   },
   "dependencies": {
-    "patch-package": "8.0.0",
     "webrtc-adapter": "8.2.3"
   },
   "scripts": {
@@ -69,7 +68,6 @@
     "make": "npm run check && npm run build && npm run docs",
     "test": "mocha --node-env=test --exit",
     "prepack": "npm run test && npm run make",
-    "start": "webpack serve",
-    "postinstall": "patch-package"
+    "start": "webpack serve"
   }
 }

net/webrtc/gstwebrtc-api/patches/webrtc-adapter+8.2.3.patch

@@ -1,13 +0,0 @@
-diff --git a/node_modules/webrtc-adapter/src/js/common_shim.js b/node_modules/webrtc-adapter/src/js/common_shim.js
-index 96d7c8e..063ea64 100644
---- a/node_modules/webrtc-adapter/src/js/common_shim.js
-+++ b/node_modules/webrtc-adapter/src/js/common_shim.js
-@@ -388,7 +388,7 @@ export function shimAddIceCandidateNullOrEmpty(window, browserDetails) {
-   }
-   const nativeAddIceCandidate =
-       window.RTCPeerConnection.prototype.addIceCandidate;
--  if (!nativeAddIceCandidate || nativeAddIceCandidate.length === 0) {
-+  if (!nativeAddIceCandidate) {
-     return;
-   }
-   window.RTCPeerConnection.prototype.addIceCandidate =

net/webrtc/gstwebrtc-api/src/consumer-session.js

@@ -341,7 +341,7 @@ class ConsumerSession extends WebRTCSession {
         });
       }
     } else if (msg.ice) {
-      const candidate = new RTCIceCandidate(msg.ice);
+      const candidate = msg.ice.candidate ? new RTCIceCandidate(msg.ice) : null;
       this._rtcPeerConnection.addIceCandidate(candidate).catch((ex) => {
         if (this._state !== SessionState.closed) {
           this.dispatchEvent(new ErrorEvent("error", {