Bug 1650837 - Part 8: Avoid unnecessary sendQuery for DevToolsFrameParent:packet, r=jdescottes

The reply was never used, and due to other changes in this bug, was causing
ignored exceptions to be thrown occasionally when a query was sent immediately
before unregistering the actor.

Differential Revision: https://phabricator.services.mozilla.com/D82615

devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm

@@ -304,8 +304,8 @@ class DevToolsFrameChild extends JSWindowActorChild {
    * Supported Queries
    */
 
-  async sendPacket(packet, prefix) {
-    return this.sendQuery("DevToolsFrameChild:packet", { packet, prefix });
+  sendPacket(packet, prefix) {
+    this.sendAsyncMessage("DevToolsFrameChild:packet", { packet, prefix });
   }
 
   /**

devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm

@@ -184,8 +184,8 @@ class DevToolsFrameParent extends JSWindowActorParent {
    * Supported Queries
    */
 
-  async sendPacket(packet, prefix) {
-    return this.sendQuery("DevToolsFrameParent:packet", { packet, prefix });
+  sendPacket(packet, prefix) {
+    this.sendAsyncMessage("DevToolsFrameParent:packet", { packet, prefix });
   }
 
   /**