Remove redundant servicePath variable from SettingsPersistence

Author: rjwats

src/SettingsPersistence.h

@@ -88,7 +88,7 @@ class SettingsPersistence {
 
   public:
 
-    SettingsPersistence(FS* fs, char const* servicePath, char const* filePath):
+    SettingsPersistence(FS* fs, char const* filePath):
       _fs(fs), _filePath(filePath) {}
 
     virtual ~SettingsPersistence() {}

src/SettingsService.h

@@ -60,7 +60,7 @@ class SettingsService : public SettingsPersistence {
   public:
 
     SettingsService(AsyncWebServer* server, FS* fs, char const* servicePath, char const* filePath):
-      SettingsPersistence(fs, servicePath, filePath), _server(server) {
+      SettingsPersistence(fs, filePath), _server(server) {
 
       // configure fetch config handler
       _server->on(servicePath, HTTP_GET, std::bind(&SettingsService::fetchConfig, this, std::placeholders::_1));