Revert "Equals keyboard" (#21622)

keyboards/boardsource/equals/equals.c

@@ -1,19 +0,0 @@
-// Copyright 2023 @boardsource
-// SPDX-License-Identifier: GPL-2.0-or-later
-#include "quantum.h"
-extern void ui_init(void);
-extern void ui_task(void);
-
-#ifdef QUANTUM_PAINTER_ENABLE
-void keyboard_post_init_kb(void) {
-    // Init the display
-    ui_init();
-    keyboard_post_init_user();
-}
-
-void housekeeping_task_kb(void) {
-    // Draw the display
-    ui_task();
-    housekeeping_task_user();
-}
-#endif //QUANTUM_PAINTER_ENABLE