Fix unused static declaration warnings

Guard declarations using the appropriate defines

Firmware/Marlin_main.cpp

@@ -454,8 +454,11 @@ static void print_time_remaining_init();
 static void wait_for_heater(long codenum, uint8_t extruder);
 static void gcode_G28(bool home_x_axis, bool home_y_axis, bool home_z_axis);
 static void gcode_M105(uint8_t extruder);
+
+#ifndef PINDA_THERMISTOR
 static void temp_compensation_start();
 static void temp_compensation_apply();
+#endif
 
 static bool get_PRUSA_SN(char* SN);
 

Firmware/temperature.cpp

@@ -197,7 +197,9 @@ static uint8_t heater_ttbllen_map[EXTRUDERS] = ARRAY_BY_EXTRUDERS( HEATER_0_TEMP
 
 static float analog2temp(int raw, uint8_t e);
 static float analog2tempBed(int raw);
+#ifdef AMBIENT_MAXTEMP
 static float analog2tempAmbient(int raw);
+#endif
 static void updateTemperaturesFromRawValues();
 
 enum TempRunawayStates

Firmware/ultralcd.cpp

@@ -59,7 +59,9 @@ int clock_interval = 0;
 
 static void lcd_sd_updir();
 static void lcd_mesh_bed_leveling_settings();
+#ifdef LCD_BL_PIN
 static void lcd_backlight_menu();
+#endif
 
 int8_t ReInitLCD = 0;
 uint8_t scrollstuff = 0;
@@ -123,7 +125,9 @@ static void lcd_tune_menu();
 static void lcd_settings_menu();
 static void lcd_calibration_menu();
 static void lcd_control_temperature_menu();
+#ifdef TMC2130
 static void lcd_settings_linearity_correction_menu_save();
+#endif
 static void prusa_stat_printerstatus(int _status);
 static void prusa_stat_farm_number();
 static void prusa_stat_diameter();
@@ -160,7 +164,6 @@ static void lcd_selftest_v();
 #ifdef TMC2130
 static void reset_crash_det(unsigned char axis);
 static bool lcd_selfcheck_axis_sg(unsigned char axis);
-static bool lcd_selfcheck_axis(int _axis, int _travel);
 #else
 static bool lcd_selfcheck_axis(int _axis, int _travel);
 static bool lcd_selfcheck_pulleys(int axis);
@@ -248,7 +251,9 @@ static void fil_unload_menu();
 #endif // SNMM || SNMM_V2
 static void lcd_disable_farm_mode();
 static void lcd_set_fan_check();
+#ifdef MMU_HAS_CUTTER
 static void lcd_cutter_enabled();
+#endif
 #ifdef SNMM
 static char snmm_stop_print_menu();
 #endif //SNMM