Remove confusing hint to non-existing file. Instead make it clear that one

shouldn't change it manually just here. The util/ssldir.pl script does more
and has to be used for this.  Pointed out by Jacques Supcik
<supcik@inf.ethz.ch>.

Makefile.org

@@ -159,8 +159,7 @@ SDIRS=  \
 	buffer bio stack lhash rand err objects \
 	evp asn1 pem x509 x509v3 conf txt_db pkcs7 comp
 
-# If you change the INSTALLTOP, make sure to also change the values
-# in crypto/location.h
+# Do not edit this manually. Use util/ssldir.pl do change this!
 INSTALLTOP=/usr/local/ssl
 
 MAKEFILE= Makefile.ssl