beret: remove leftover file

PR #146312 removed the beret package, but didn’t remove a patch file
that was only used by beret. This commit gets rid of that unused file.

pkgs/games/beret/use-home-dir.patch

@@ -1,48 +0,0 @@
-diff -Naur beret-beret-orig/game.c beret-beret/game.c
---- beret-beret-orig/game.c	2011-12-17 18:51:32.000000000 -0500
-+++ beret-beret/game.c	2011-12-21 13:16:37.047511020 -0500
-@@ -10,12 +10,10 @@
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
--#ifdef __APPLE__
- #include <sys/stat.h>
- #include <unistd.h>
- #include <errno.h>
- #include <pwd.h>
--#endif
- 
- #define CAMSCROLL 15
- #define SCR_WIDTH 780
-@@ -88,12 +86,8 @@
- #define DIRSEP "/"
- #endif
- 
--#ifdef __APPLE__
--#define SUPPORT_PATH "Library/Application Support/Beret/"
--#define RESOURCE_PATH "Beret.app/Contents/Resources/"
--#else
-+#define SUPPORT_PATH ".beret"
- #define RESOURCE_PATH ""
--#endif
- 
- #define QUITMOD_WIN KMOD_ALT
- #define QUITKEY_WIN SDLK_F4
-@@ -812,7 +806,6 @@
- 
- int init() {
- 
--  #ifdef __APPLE__
-   char filestr[512];
-   // Get the home directory of the user.
-   struct passwd *pwd = getpwuid(getuid());
-@@ -827,9 +820,6 @@
-     sprintf(filestr, "%s/saves", support_path);
-     mkdir(filestr, S_IRWXU);
-   }
--  #else
--  sprintf(support_path, "");
--  #endif
- 
-   if (SDL_Init(SDL_INIT_EVERYTHING) == -1) {
-     printf("Error: couldn't initialize SDL\n");