diff --git a/patch/bdiff.sh b/patch/bdiff.sh
deleted file mode 100755
index 1a4381529..000000000
--- a/patch/bdiff.sh
+++ /dev/null
@@ -1,59 +0,0 @@
-#! /bin/sh -e
-
-#DIFF=zdc
-DIFF=bsdiff
-
-srcA=$1
-srcB=$2
-
-if test -z "$srcA" -o -z "$srcB"; then
-    echo "syntax: bdiff.sh srcA srcB"
-    exit 1
-fi
-
-(cd $srcB && find . -type f) | while read fn; do
-
-    if test -f "$srcA/$fn"; then
-
-        if ! test -f "$srcB/$fn"; then
-            echo "DELETE $fn"
-        else
-
-            if ! cmp "$srcA/$fn" "$srcB/$fn" > /dev/null; then
-                    
-                echo "FILE DELTA FOR $fn"
-
-                TMPFILE=/tmp/__bsdiff
-                $DIFF "$srcA/$fn" "$srcB/$fn" $TMPFILE
-                cat $TMPFILE
-
-                diffSize=$(stat -c '%s' $TMPFILE)
-
-                # For comparison.
-                bzipSize=$(bzip2 < "$srcB/$fn" | wc -m)
-
-                gain=$(echo "scale=2; ($diffSize - $bzipSize) / $bzipSize * 100" | bc)
-
-                ouch=$(if test "${gain:0:1}" != "-"; then echo "!"; fi)
-
-                printf "%7.2f %1s %10d %10d %s\n" \
-                    "$gain" "$ouch" "$diffSize" "$bzipSize" "$fn" >&2
-#        echo "$fn -> $diffSize $bzipSize ==> $gain  $ouch" >&2
-
-                rm $TMPFILE
-
-            fi
-
-        fi
-
-        # Note: be silent about unchanged files.
-
-    else
-
-	echo "NEW FILE $fn"
-
-	cat "$srcB/$fn"
-
-    fi
-
-done