removed examples with copyright issues at FSF request

examples/functions/sqroot

@@ -1,21 +0,0 @@
-#From: Syamala Rao Tadigadapa <stadigad@us.oracle.com>
-#Subject: Re: Division in ksh(getting the exact number) Please HELP
-#Date: Mon, 25 Oct 1999 15:05:08 -0700
-#Message-ID: <3814D414.7B896084@us.oracle.com>
-
-#Here is how to calculate the (integer part of the) square root
-#of a number in a much cleaner way.
-
-sqroot()
-{
-	let arg=$1
-	let root=arg
-	while :
-	do
-		newroot=$(( (root+arg/root)/2 ))
-		(( newroot == root )) && { echo $root; return; }
-		let root=newroot
-	done
-}
-
-sqroot "$@"