add logging in MccSimpleSlewingModel class

asibfm700/asibfm700_configfile.h

@@ -220,7 +220,7 @@ static auto Asibfm700MountConfigDefaults = std::make_tuple(
 
     // encoders polling interval in millisecs
     simple_config_record_t{"EncoderReqInterval",
-                           std::chrono::milliseconds(50),
+                           std::chrono::milliseconds(1),
                            {"encoders polling interval in millisecs"}},
 
     // mount axes rate calculation interval in millisecs
@@ -746,7 +746,7 @@ public:
             fst << "\n";
         };
 
-        [&wrec, this]<size_t... Is>(std::index_sequence<Is...>) {
+        [&wrec]<size_t... Is>(std::index_sequence<Is...>) {
             (wrec.operator()<Is>(), ...);
         }(std::make_index_sequence<std::tuple_size_v<decltype(Asibfm700MountConfigDefaults)>>());