[SYS] Fix erase function for ESP8266 (#2101)

And remove restart parameter as it is not used (the ESP always restart after erase for our use cases)

Co-authored-by: Florian <1technophile@users.noreply.github.com>

main/ZwebUI.ino

@@ -46,7 +46,7 @@ QueueHandle_t webUIQueue;
 WebServer server(80);
 
 /*------------------- External functions ----------------------*/
-extern void erase(bool restart);
+extern void eraseConfig();
 extern unsigned long uptime();
 
 /*------------------- Web Console Globals ----------------------*/
@@ -1237,7 +1237,7 @@ void handleRT() {
     response += String(buffer);
     server.send(200, "text/html", response);
 
-    erase(true);
+    eraseConfig();
   } else {
     handleCN();
   }