MFC 1.3:

In rev. 1.2 we have introduced a fallback handler for files with unknown
extensions.  This seems to be unnecessary and prevents less(1) from being
able to detect file changes, so remove the part.

Submitted by:	Eric Huss <e-huss netmeridian com>
PR:		bin/102624
Discussed with:	des

usr.bin/less/lesspipe.sh

@@ -13,7 +13,4 @@ case "$1" in
 	*.bz2)
 		exec bzip2 -d -c $1	2>/dev/null
 		;;
-	*)
-		exec cat $1		2>/dev/null
-		;;
 esac