rm an incorrect alias

mpg · mpg · commit 2a01bc6ca339 · 2011-12-31T18:17:45.000+01:00
diff --git a/texdoc.cnf b/texdoc.cnf
@@ -397,7 +397,6 @@ alias expressg      = expeg
 alias flcards       = flashcards
 alias lehman        = fontinstallationguide
 alias gnlogic       = gn-logic14
-alias index         = ind
 alias kluwer        = kluwer/usrman
 alias lmfonts       = lm-info
 alias latex3        = ltx3info
