clean up

main/encoder.h

@@ -31,21 +31,6 @@ bool encoder_has_delta(void);
  */
 int32_t encoder_get_delta_and_reset(void);
 
-/**
- * @brief Return current accumulator without resetting.
- */
-int32_t encoder_get_delta(void);
-
-/**
- * @brief True if the push button was pressed since last poll.
- */
-bool encoder_button_pressed(void);
-
-/**
- * @brief Clear the button-pressed flag.
- */
-void encoder_clear_button(void);
-
 /**
  * @brief Get current quadrature steps per mechanical detent tick (2 or 4).
  */