General cleanup: pause, MarlinCore

Marlin/src/MarlinCore.cpp

   bool wait_for_user; // = false;
 
   void wait_for_user_response(millis_t ms/*=0*/, const bool no_sleep/*=false*/) {
-    #if DISABLED(ADVANCED_PAUSE_FEATURE)
-      UNUSED(no_sleep);
-    #endif
+    TERN(ADVANCED_PAUSE_FEATURE,,UNUSED(no_sleep));
     KEEPALIVE_STATE(PAUSED_FOR_USER);
     wait_for_user = true;
     if (ms) ms += millis(); // expire time

Marlin/src/feature/pause.cpp

       }
     }
   }
+#else
+  inline void filament_change_beep(const int8_t, const bool=false) {}
 #endif
 
 /**
                    const PauseMode mode/*=PAUSE_MODE_PAUSE_PRINT*/
                    DXC_ARGS
 ) {
-  #if !HAS_LCD_MENU
-    UNUSED(show_lcd);
-  #endif
+  TERN(HAS_LCD_MENU,,UNUSED(show_lcd));
 
   if (!ensure_safe_temperature(mode)) {
     #if HAS_LCD_MENU
     #endif
     SERIAL_ECHO_MSG(_PMSG(STR_FILAMENT_CHANGE_INSERT));
 
-    #if HAS_BUZZER
-      filament_change_beep(max_beep_count, true);
-    #else
-      UNUSED(max_beep_count);
-    #endif
+    filament_change_beep(max_beep_count, true);
 
     KEEPALIVE_STATE(PAUSED_FOR_USER);
     #if ENABLED(HOST_PROMPT_SUPPORT)
     #endif
     TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired_P(PSTR("Load Filament")));
     while (wait_for_user) {
-      TERN_(HAS_BUZZER, filament_change_beep(max_beep_count));
+      filament_change_beep(max_beep_count);
       idle_no_sleep();
     }
   }
                        , const float &mix_multiplier/*=1.0*/
                      #endif
 ) {
-  #if !HAS_LCD_MENU
-    UNUSED(show_lcd);
-  #endif
+  TERN(HAS_LCD_MENU,,UNUSED(show_lcd));
 
   #if !BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
     constexpr float mix_multiplier = 1.0;
 uint8_t did_pause_print = 0;
 
 bool pause_print(const float &retract, const xyz_pos_t &park_point, const float &unload_length/*=0*/, const bool show_lcd/*=false*/ DXC_ARGS) {
-
-  #if !HAS_LCD_MENU
-    UNUSED(show_lcd);
-  #endif
+  TERN(HAS_LCD_MENU,,UNUSED(show_lcd));
 
   if (did_pause_print) return false; // already paused
 
 
   show_continue_prompt(is_reload);
 
-  #if HAS_BUZZER
-    filament_change_beep(max_beep_count, true);
-  #else
-    UNUSED(max_beep_count);
-  #endif
+  filament_change_beep(max_beep_count, true);
 
   // Start the heater idle timers
   const millis_t nozzle_timeout = SEC_TO_MS(PAUSE_PARK_NOZZLE_TIMEOUT);
   TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_NOZZLE_PARKED)));
   wait_for_user = true;    // LCD click or M108 will clear this
   while (wait_for_user) {
-    TERN_(HAS_BUZZER, filament_change_beep(max_beep_count));
+    filament_change_beep(max_beep_count);
 
     // If the nozzle has timed out...
     if (!nozzle_timed_out)
       wait_for_user = true;
       nozzle_timed_out = false;
 
-      TERN_(HAS_BUZZER, filament_change_beep(max_beep_count, true));
+      filament_change_beep(max_beep_count, true);
     }
     idle_no_sleep();
   }