Avoid assumptions about PATH.

--- adv770-2.33/acode-12.91/bin/lib.sh	2024-11-19 14:14:59.000000000 +0000
+++ adv770-2.33/acode-12.91/bin/lib.sh	2025-07-07 17:25:31.009742084 +0100
@@ -7,27 +7,7 @@
 ADV=$(dirname $BIN)
 KDIR="$ADV/kernel"
 ADIR="$ADV/acdc"
-#
-# Sanitise PATH, allowing for emscripten.
-#
-cline="$@"    # Preserve the command line
-RIFS="$IFS"
-IFS=: 
-set -- $PATH  # Split PATH
-IFS="$RIFS"
-PATH=''
-while [ $# -gt 0 ]; do
-  case "$1" in
-    /bin|/usr*|*/ems*) 
-      [ -n "$PATH" ] && PATH="$PATH:"
-      PATH="$PATH$1"
-    ;;
-    *) ;;
-  esac
-  shift
-done
 PATH="$PATH:$BIN"
-set -- $cline     # Restore command line
 #
 #------------------------------------------------------------------------
 function stability()