Clean up some pre-serial-redirect includes

Marlin/src/gcode/config/M217.cpp

@@ -27,10 +27,6 @@
 #include "../gcode.h"
 #include "../../module/tool_change.h"
 
-#if NUM_SERIAL > 1
-  #include "../../gcode/queue.h"
-#endif
-
 void M217_report(const bool eeprom=false) {
 
   #if ENABLED(TOOLCHANGE_FILAMENT_SWAP)

Marlin/src/gcode/eeprom/M500-M504.cpp

@@ -29,10 +29,6 @@
   #include "../../lcd/extensible_ui/ui_api.h"
 #endif
 
-#if NUM_SERIAL > 1
-  #include "../../gcode/queue.h"
-#endif
-
 /**
  * M500: Store settings in EEPROM
  */

Marlin/src/gcode/host/M115.cpp

@@ -23,10 +23,6 @@
 #include "../gcode.h"
 #include "../../inc/MarlinConfig.h"
 
-#if NUM_SERIAL > 1
-  #include "../../gcode/queue.h"
-#endif
-
 #if ENABLED(EXTENDED_CAPABILITIES_REPORT)
   static void cap_line(PGM_P const name, bool ena=false) {
     SERIAL_ECHOPGM("Cap:");

Marlin/src/gcode/stats/M31.cpp

@@ -26,10 +26,6 @@
 #include "../../libs/duration_t.h"
 #include "../../lcd/ultralcd.h"
 
-#if NUM_SERIAL > 1
-  #include "../../gcode/queue.h"
-#endif
-
 /**
  * M31: Get the time since the start of SD Print (or last M109)
  */

Marlin/src/gcode/temperature/M105.cpp

@@ -23,10 +23,6 @@
 #include "../gcode.h"
 #include "../../module/temperature.h"
 
-#if NUM_SERIAL > 1
-  #include "../../gcode/queue.h"
-#endif
-
 /**
  * M105: Read hot end and bed temperature
  */