Remove unused suspend_idle (#16063)

platforms/arm_atsam/suspend.c

@@ -3,13 +3,6 @@
 #include "md_rgb_matrix.h"
 #include "suspend.h"
 
-/** \brief Suspend idle
- *
- * FIXME: needs doc
- */
-void suspend_idle(uint8_t time) { /* Note: Not used anywhere currently */
-}
-
 /** \brief Run user level Power down
  *
  * FIXME: needs doc

platforms/avr/suspend.c

@@ -16,19 +16,6 @@
 #    include "vusb.h"
 #endif
 
-/** \brief Suspend idle
- *
- * FIXME: needs doc
- */
-void suspend_idle(uint8_t time) {
-    cli();
-    set_sleep_mode(SLEEP_MODE_IDLE);
-    sleep_enable();
-    sei();
-    sleep_cpu();
-    sleep_disable();
-}
-
 // TODO: This needs some cleanup
 
 #if !defined(NO_SUSPEND_POWER_DOWN) && defined(WDT_vect)

platforms/chibios/suspend.c

@@ -13,15 +13,6 @@
 #include "led.h"
 #include "wait.h"
 
-/** \brief suspend idle
- *
- * FIXME: needs doc
- */
-void suspend_idle(uint8_t time) {
-    // TODO: this is not used anywhere - what units is 'time' in?
-    wait_ms(time);
-}
-
 /** \brief suspend power down
  *
  * FIXME: needs doc

platforms/suspend.h

@@ -3,7 +3,6 @@
 #include <stdint.h>
 #include <stdbool.h>
 
-void suspend_idle(uint8_t timeout);
 void suspend_power_down(void);
 bool suspend_wakeup_condition(void);
 void suspend_wakeup_init(void);