Removing onClosing listener because it isn't being used.

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/single/basic/BasicRelayClient.kt

@@ -170,15 +170,6 @@ open class BasicRelayClient(
             consumeIncomingMessage(text, onConnected)
         }
 
-        override fun onClosing(
-            code: Int,
-            reason: String,
-        ) {
-            Log.w(logTag, "OnClosing $code $reason")
-
-            listener.onRelayStateChange(this@BasicRelayClient, RelayState.DISCONNECTING)
-        }
-
         override fun onClosed(
             code: Int,
             reason: String,

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/sockets/WebSocketListener.kt

@@ -20,6 +20,10 @@
  */
 package com.vitorpamplona.quartz.nip01Core.relay.sockets
 
+/**
+ * Interface to abstract the socket implementation.
+ * Make sure onMessage appears in order of the receipt.
+ */
 interface WebSocketListener {
     fun onOpen(
         pingMillis: Int,
@@ -28,11 +32,6 @@ interface WebSocketListener {
 
     fun onMessage(text: String)
 
-    fun onClosing(
-        code: Int,
-        reason: String,
-    )
-
     fun onClosed(
         code: Int,
         reason: String,

quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/nip01Core/relay/sockets/okhttp/BasicOkHttpWebSocket.kt

@@ -87,12 +87,6 @@ class BasicOkHttpWebSocket(
                     incomingMessages.trySendBlocking(text)
                 }
 
-                override fun onClosing(
-                    webSocket: OkHttpWebSocket,
-                    code: Int,
-                    reason: String,
-                ) = out.onClosing(code, reason)
-
                 override fun onClosed(
                     webSocket: OkHttpWebSocket,
                     code: Int,