[Keymap] Update to personal keymaps (#6136)

* changes to keymaps

* changes to userspace

* changes to userspace

* removed reference to fc660c keymap which no longer exists from userspace readme

* removed preonic keymap

users/spacebarracecar/readme.md

@@ -14,7 +14,7 @@ I'm using the US Ansi layout however I'm living in Germany which means that ever
 - The keycodes are handled by the `process_record_user` function which is now located in [spacebarracecar.c](spacebarracecar.c). To change keyboard specific configuration `process_record_keymap` is used (see [drashna userspace readme](../drashna/readme.md) for better explanation).
 - There is a predefined `_DEADKEY` layer in [spacebarracecar.h](spacebarracecar.h) under `enum userspace_layers`. Shifted CU_QUOT enables the dead key layer, just like KC_QUOT would when using the US International layout. (See `enum userspace_custom_keycodes` for more explanation).
 - On Windows grave and circonflexe are defined as dead keys when using the standard german layout. Those are automatically escaped when using the custom keycodes. `CU_ESCT` can be used to enable/disable this behavior.
-- For a complete example see my [fc660c](../../keyboards/fc660c/keymaps/spacebarracecar/keymap.c) or [planck](../../keyboards/planck/keymaps/spacebarracecar/keymap.c) keymaps.
+- For a complete example see my [planck](../../keyboards/planck/keymaps/spacebarracecar/keymap.c) keymap.
 
 ### How it works
 

users/spacebarracecar/spacebarracecar.c

@@ -71,6 +71,11 @@ void timer_timeout(void){
   rshiftp = false;
   #endif
   navesc = false;
+  timer_timeout_keymap();
+}
+
+__attribute__((weak))
+void timer_timeout_keymap(void){
 }
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
@@ -340,3 +345,8 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     return process_record_keymap(keycode, record);
   }
 }
+
+__attribute__((weak))
+bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

users/spacebarracecar/spacebarracecar.h

@@ -75,6 +75,8 @@ extern bool game;
 
 void timer_timeout(void);
 
+void timer_timeout_keymap(void);
+
 bool process_record_keymap(uint16_t keycode, keyrecord_t *record);
 
 #define CTRLX LCTL(KC_X)