Eliminate clutter in Formbot T-Rex 3 Configuration.h file

The extra clutter was making the Junction Deviation patch script calculate the wrong value.
(The script wasn't smart enough to see the extra lines were commented out and used the wrong values in the calculation.)

All fixed now with a JUNCTION_DEVIATION_MM calculated at .017

config/examples/Formbot/T_Rex_3/Configuration.h

  *   M204 T    Travel Acceleration
  */
 
-//#define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration for printing moves
-//#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration for retracts
-//#define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration for travel (non printing) moves
-
 #define DEFAULT_ACCELERATION          1500    // X, Y, Z and E acceleration for printing moves
 #define DEFAULT_RETRACT_ACCELERATION  1500    // E acceleration for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   1500    // X, Y, Z acceleration for travel (non printing) moves
  *   http://blog.kyneticcnc.com/2018/10/computing-junction-deviation-for-marlin.html
  */
 #if DISABLED(CLASSIC_JERK)
-  #define JUNCTION_DEVIATION_MM 0.009 // (mm) Distance from real junction edge
+  #define JUNCTION_DEVIATION_MM 0.017 // (mm) Distance from real junction edge
 #endif
 
 /**