Fix more build failures (#19869)

keyboards/bpiphany/pegasushoof/keymaps/via/config.h

@@ -1,18 +0,0 @@
-/* Copyright 2023 Emrik Östling
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#define DYNAMIC_KEYMAP_LAYER_COUNT 2

keyboards/handwired/dactyl_manuform/6x6/blackpill_f411/info.json

@@ -1,6 +1,5 @@
 {
     "split": {
-        "soft_serial_pin": "B6",
         "bootmagic": {
             "matrix": [7, 0]
         }

keyboards/handwired/dactyl_manuform/dmote/62key/info.json

@@ -11,6 +11,7 @@
         "device_version": "0.0.1"
     },
     "split": {
+        "enabled": true,
         "soft_serial_pin": "D0"
     },
     "layouts": {

keyboards/redox/rev1/proton_c/info.json

@@ -2,9 +2,6 @@
     "usb": {
         "device_version": "1.0.1"
     },
-    "split": {
-        "soft_serial_pin": "B6"
-    },
     "processor": "STM32F303",
     "bootloader": "stm32-dfu",
     "board": "QMK_PROTON_C"