relay: fix building with rfbridge provider

code/espurna/button.cpp

@@ -283,8 +283,7 @@ void _buttonWebSocketOnVisible(JsonObject& root) {
 }
 
 #if (BUTTON_EVENTS_SOURCE == BUTTON_EVENTS_SOURCE_ITEAD_SONOFF_DUAL) || \
-    (BUTTON_EVENTS_SOURCE == BUTTON_EVENTS_SOURCE_FOXEL_LIGHTFOX_DUAL) || \
-    (BUTTON_EVENTS_SOURCE == BUTTON_EVENTS_SOURCE_MCP23S08)
+    (BUTTON_EVENTS_SOURCE == BUTTON_EVENTS_SOURCE_FOXEL_LIGHTFOX_DUAL)
 
 void _buttonWebSocketOnConnected(JsonObject& root) {
     root["btnRepDel"] = getSetting("btnRepDel", _buttonRepeatDelay());

code/espurna/relay.cpp

@@ -1467,6 +1467,8 @@ void _relaySetupAdhoc() {
         using gpio_type = GpioPin;
     #elif (RELAY_PROVIDER == RELAY_PROVIDER_MCP23S08)
         using gpio_type = McpGpioPin;
+    #else
+        using gpio_type = DummyPin;
     #endif
 
     for (unsigned char id = 0; id < RelaysMax; ++id) {