Clean up code, remove _now command function

Marlin/Marlin.h

 inline bool IsStopped() { return !Running; }
 
 bool enqueue_and_echo_command(const char* cmd, bool say_ok=false); //put a single ASCII command at the end of the current buffer or return false when it is full
-void enqueue_and_echo_command_now(const char* cmd); // enqueue now, only return when the command has been enqueued
 void enqueue_and_echo_commands_P(const char* cmd); //put one or many ASCII commands at the end of the current buffer, read from flash
 void clear_command_queue();
 

Marlin/Marlin_main.cpp

   return false;
 }
 
-void enqueue_and_echo_command_now(const char* cmd) {
-  while (!enqueue_and_echo_command(cmd)) idle();
-}
-
 void setup_killpin() {
   #if HAS_KILL
     SET_INPUT_PULLUP(KILL_PIN);

Marlin/UBL_G29.cpp

     const uint16_t k = E2END - ubl.eeprom_start;
 
     SERIAL_PROTOCOLPGM("Unified Bed Leveling System Version 1.00 ");
-    if (ubl.state.active)  
+    if (ubl.state.active)
       SERIAL_PROTOCOLCHAR('A');
     else
       SERIAL_PROTOCOLPGM("In");
 
       do_blocking_move_to_z(Z_CLEARANCE_DEPLOY_PROBE);    // Move the nozzle to where we are going to edit
       do_blocking_move_to_xy(LOGICAL_X_POSITION(rawx), LOGICAL_Y_POSITION(rawy));
+
       float new_z = ubl.z_values[location.x_index][location.y_index];
       
       round_off = (int32_t)(new_z * 1000.0);    // we chop off the last digits just to be clean. We are rounding to the