PID_EXTRUSION_SCALING, disabled by default

Marlin/Configuration_adv.h

@@ -113,8 +113,8 @@
 #if ENABLED(PIDTEMP)
   // this adds an experimental additional term to the heating power, proportional to the extrusion speed.
   // if Kc is chosen well, the additional required power due to increased melting should be compensated.
-  #define PID_ADD_EXTRUSION_RATE
-  #if ENABLED(PID_ADD_EXTRUSION_RATE)
+  //#define PID_EXTRUSION_SCALING
+  #if ENABLED(PID_EXTRUSION_SCALING)
     #define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
     #define LPQ_MAX_LEN 50
   #endif