esp32h4: remove esp32h4 target from peripherals

components/soc/esp32h4/sdm_periph.c

@@ -1,25 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "soc/sdm_periph.h"
-#include "soc/gpio_sig_map.h"
-
-const sigma_delta_signal_conn_t sigma_delta_periph_signals = {
-    .channels = {
-        [0] = {
-            GPIO_SD0_OUT_IDX
-        },
-        [1] = {
-            GPIO_SD1_OUT_IDX
-        },
-        [2] = {
-            GPIO_SD2_OUT_IDX
-        },
-        [3] = {
-            GPIO_SD3_OUT_IDX
-        }
-    }
-};