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
 value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>refs</a><a class='active' href='/guix/log/nix/libutil/gcrypt-hash.cc'>log</a><a href='/guix/tree/nix/libutil/gcrypt-hash.cc?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>tree</a><a href='/guix/commit/nix/libutil/gcrypt-hash.cc?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>commit</a><a href='/guix/diff/nix/libutil/gcrypt-hash.cc?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/nix/libutil/gcrypt-hash.cc'>
<input type='hidden' name='id' value='01dce79fa400e7e41024567c9fc7614b0cf8eddf'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>root</a>/<a href='/guix/log/nix?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>nix</a>/<a href='/guix/log/nix/libutil?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>libutil</a>/<a href='/guix/log/nix/libutil/gcrypt-hash.cc?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf'>gcrypt-hash.cc</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/nix/libutil/gcrypt-hash.cc?id=01dce79fa400e7e41024567c9fc7614b0cf8eddf&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>