Revert "In split keyboards fix connection issue when slave and OLED a…

…re connected via I2C. Fix qmk#9335"

This reverts commit 3ee639e.

tmk_core/common/keyboard.c

@@ -263,14 +263,8 @@ void keyboard_init(void) {
     qwiic_init();
 #endif
 #ifdef OLED_DRIVER_ENABLE
-#if defined(SPLIT_KEYBOARD) && defined(USE_I2C)
-    if (is_keyboard_master()) {
-        oled_init(OLED_ROTATION_0);
-    }
-#else
     oled_init(OLED_ROTATION_0);
 #endif
-#endif
 #ifdef PS2_MOUSE_ENABLE
     ps2_mouse_init();
 #endif
@@ -410,22 +404,12 @@ void keyboard_task(void) {
 #endif
 
 #ifdef OLED_DRIVER_ENABLE
-#if defined(SPLIT_KEYBOARD) && defined(USE_I2C)
-    if (is_keyboard_master()) {
-    oled_task();
-    #ifndef OLED_DISABLE_TIMEOUT
-    // Wake up oled if user is using those fabulous keys!
-        if (ret) oled_on();
-    #endif
-    }
-#else
     oled_task();
 #    ifndef OLED_DISABLE_TIMEOUT
     // Wake up oled if user is using those fabulous keys!
     if (ret) oled_on();
 #    endif
 #endif
-#endif
 
 #ifdef MOUSEKEY_ENABLE
     // mousekey repeat & acceleration