component/postfix: use openssl 1.1 again

Now that we updated postfix, we can use default openssl

According to http://www.postfix.org/announcements/postfix-3.1.2.html

> Fixed with Postfix 3.1.2:
> Changes to make Postfix build with OpenSSL 1.1.0.

component/postfix/buildout.cfg

@@ -20,7 +20,7 @@ patch-options = -p1
 patches =
   ${:_profile_base_location_}/noroot.patch#05fc6333e05576ea8e5a49f27a6ef951
 configure-command = make
-configure-options = makefiles CCARGS='-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -DUSE_TLS -DHAS_PCRE -DHAS_DB -I${libdb:location}/include -I${pcre:location}/include -I${openssl-1.0:location}/include -I${cyrus-sasl:location}/include/sasl' AUXLIBS='-L${openssl-1.0:location}/lib -L${pcre:location}/lib -L${libdb:location}/lib -L${cyrus-sasl:location}/lib -lssl -lpcre -ldb -lcrypto -lsasl2 -Wl,-rpath=${openssl-1.0:location}/lib -Wl,-rpath=${pcre:location}/lib -Wl,-rpath=${libdb:location}/lib -Wl,-rpath=${cyrus-sasl:location}/lib'
+configure-options = makefiles CCARGS='-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -DUSE_TLS -DHAS_PCRE -DHAS_DB -I${libdb:location}/include -I${pcre:location}/include -I${openssl:location}/include -I${cyrus-sasl:location}/include/sasl' AUXLIBS='-L${openssl:location}/lib -L${pcre:location}/lib -L${libdb:location}/lib -L${cyrus-sasl:location}/lib -lssl -lpcre -ldb -lcrypto -lsasl2 -Wl,-rpath=${openssl:location}/lib -Wl,-rpath=${pcre:location}/lib -Wl,-rpath=${libdb:location}/lib -Wl,-rpath=${cyrus-sasl:location}/lib'
 make-targets = non-interactive-package install_root=${:location}
 environment =
   PATH=${patch:location}/bin:${m4:location}/bin:%(PATH)s