Fix compiler warnings:

In file included from sketch/ConfigurationStore.cpp:3:0:
sketch/temperature.h:193:14: warning: 'temp_runaway_status' defined but not used [-Wunused-variable]
 static float temp_runaway_status[4];
              ^
sketch/temperature.h:194:14: warning: 'temp_runaway_target' defined but not used [-Wunused-variable]
 static float temp_runaway_target[4];
              ^
sketch/temperature.h:195:14: warning: 'temp_runaway_timer' defined but not used [-Wunused-variable]
 static float temp_runaway_timer[4];
              ^
sketch/temperature.h:196:12: warning: 'temp_runaway_error_counter' defined but not used [-Wunused-variable]
 static int temp_runaway_error_counter[4];

Firmware/temperature.cpp

@@ -205,6 +205,16 @@ unsigned long watchmillis[EXTRUDERS] = ARRAY_BY_EXTRUDERS(0,0,0);
 //=============================   functions      ============================
 //===========================================================================
 
+#if (defined (TEMP_RUNAWAY_BED_HYSTERESIS) && TEMP_RUNAWAY_BED_TIMEOUT > 0) || (defined (TEMP_RUNAWAY_EXTRUDER_HYSTERESIS) && TEMP_RUNAWAY_EXTRUDER_TIMEOUT > 0)
+static float temp_runaway_status[4];
+static float temp_runaway_target[4];
+static float temp_runaway_timer[4];
+static int temp_runaway_error_counter[4];
+
+static void temp_runaway_check(int _heater_id, float _target_temperature, float _current_temperature, float _output, bool _isbed);
+static void temp_runaway_stop(bool isPreheat, bool isBed);
+#endif
+
   void PID_autotune(float temp, int extruder, int ncycles)
   {
   pid_number_of_cycles = ncycles;

Firmware/temperature.h

@@ -189,16 +189,6 @@ FORCE_INLINE bool isCoolingBed() {
 #error Invalid number of extruders
 #endif
 
-#if (defined (TEMP_RUNAWAY_BED_HYSTERESIS) && TEMP_RUNAWAY_BED_TIMEOUT > 0) || (defined (TEMP_RUNAWAY_EXTRUDER_HYSTERESIS) && TEMP_RUNAWAY_EXTRUDER_TIMEOUT > 0)
-static float temp_runaway_status[4];
-static float temp_runaway_target[4];
-static float temp_runaway_timer[4];
-static int temp_runaway_error_counter[4];
-
-void temp_runaway_check(int _heater_id, float _target_temperature, float _current_temperature, float _output, bool _isbed);
-void temp_runaway_stop(bool isPreheat, bool isBed);
-#endif
-
 int getHeaterPower(int heater);
 void disable_heater();
 void setWatch();