Revert "AP_Param: add set_and_save_and_notify()"

This reverts commit 96a2aa485a.

libraries/AP_Param/AP_Param.h

@@ -777,19 +777,6 @@ public:
         }
     }
 
-    /// Value setter - set value and save, tell GCS
-    ///
-    void set_and_save_and_notify(const T &v) {
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-        if (v != _value) {
-#pragma GCC diagnostic pop
-            set(v);
-            save(true);
-            notify();
-        }
-    }
-
     /// Combined set and save
     ///
     void set_and_save(const T &v) {