Remove some use of keymap.h (#20316)

keyboards/xiudi/xd75/keymaps/germanized/keymap.c

@@ -2,13 +2,6 @@
 */
 #include QMK_KEYBOARD_H
 
-#ifndef KEYMAP_GERMAN
-#define KEYMAP_GERMAN
-
-#include "keymap.h"
-
-#endif
-
 //Tap Dance Declarations
 enum {
   TD_ESC_RUPT = 0

users/bcat/bcat.h

@@ -18,7 +18,7 @@
 
 #include <stdbool.h>
 
-#include "keymap.h"
+#include "keycodes.h"
 
 /* Layer numbers shared across keymaps. */
 enum user_layer {

users/toinux/keymap_qwerty_fr.h

@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include "keymap.h"
+#include "keycodes.h"
 
 // clang-format off