Remove a few 'setenv's from the definition.

diff -Naur bsd-games-2.17/config.params bsd-games-patch/config.params
--- bsd-games-2.17/config.params	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/config.params	2020-04-22 20:49:40.809695248 +0700
@@ -0,0 +1,16 @@
+bsd_games_cfg_do_chown=n
+bsd_games_cfg_non_interactive=y
+
+# Fix some man-pages: cfscores, morse, ppt, rot13, snscore, teachgammon.
+bsd_games_cfg_use_dot_so=syml
+
+# Don't build some games:
+# Countmail require some BSD-package called `from`.
+# DM is a toy to restrict access to bsd-games.
+# Fortune seems to be already packaged (fortune-mod).
+# Wargames isn't convenient as a game launcher.
+bsd_games_cfg_no_build_dirs="countmail dm fortune wargames"
+
+# Those are substitute*'d with GNU miscfiles.
+bsd_games_cfg_hangman_wordsfile=WORD_LIST
+bsd_games_cfg_dictionary_src=WORD_LIST
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<tr><td><span title='2024-05-13 16:31:35 +0200'>2024-05-13</span></td><td><a href='/guix/commit/tests/syscalls.scm?id=7ca9809cdbfe326294a5d8c64b4b8c59d0e76bea'>tests: Skip ‘terminal-string-width’ test on encodings other than UTF-8.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-11-25 16:29:25 +0100'>2023-11-25</span></td><td><a href='/guix/commit/tests/syscalls.scm?id=e04f8fe4ea50f81847cad98a5dc6b32c27b81ea2'>tests: Use ‘test-equal’ for ‘terminal-string-width’ tests.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-11-11 11:07:27 +0100'>2023-11-11</span></td><td><a href='/guix/commit/tests/syscalls.scm?id=fd11d7fbf8e0fcc61ff764dcc0ab737971afc55a'>guix: syscalls: Add terminal-string-width.</a><span class='msg-avail'>...</span></td><td>Julien Lepiller</td></tr>