nodejs6: use bundled openssl

This is a preparation step for OpenSSL 1.1 migration. Node.js 6 does not
build with OpenSSL 1.1:

:info:build ../src/node_crypto.h:91:40: error: invalid application of 'sizeof' to an incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')

I switched to bundled openssl instead of using the openssl10 port to
lower the maintenance burden. nodejs6 is EOL'ed upstream and will be
considered to be dropped once nodejs8 works on OS X 10.6, anyway.

Closes: https://trac.macports.org/ticket/58224

devel/nodejs6/Portfile

@@ -5,6 +5,7 @@ PortGroup               compiler_blacklist_versions 1.0
 
 name                    nodejs6
 version                 6.17.1
+revision                1
 
 categories              devel net
 platforms               darwin
@@ -33,8 +34,7 @@ distname                node-v${version}
 depends_build           port:pkgconfig
 
 depends_lib             port:icu \
-                        port:python27 \
-                        path:lib/libssl.dylib:openssl
+                        port:python27
 
 proc rec_glob {basedir pattern} {
     set files [glob -directory $basedir -nocomplain -type f $pattern]
@@ -78,9 +78,6 @@ if { ${os.platform} eq "darwin" && ${os.major} < 11 } {
 
 configure.args-append   --without-npm
 configure.args-append   --with-intl=system-icu
-configure.args-append   --shared-openssl
-configure.args-append   --shared-openssl-includes=${prefix}/include/openssl
-configure.args-append   --shared-openssl-libpath=${prefix}/lib
 
 # V8 only supports ARM and IA-32 processors
 supported_archs         i386 x86_64