mail/postfixadmin: drop ugly xmlrpc dependency hack

It no more needed since Mk/Uses/php.mk have a check for every
supported php version and able to select a right dependency.

With hat:	ports-secteam

mail/postfixadmin/Makefile

@@ -36,18 +36,12 @@ OPTIONS_DEFAULT=	PGSQL
 
 USE_PERL5=	run
 
-USE_PHP=	mbstring openssl pcre phar session spl
+USE_PHP=	mbstring openssl pcre phar session spl xmlrpc
 
 MYSQL_USE=	php=mysqli
 PGSQL_USE=	php=pgsql
 SQLITE_USE=	php=sqlite3
 
-.include <bsd.port.options.mk>
-
-.if ${FLAVOR} != php80
-USE_PHP+=	xmlrpc
-.endif
-
 do-install:
 	@${MKDIR} ${STAGEDIR}${WWWDIR}
 	@${MKDIR} ${STAGEDIR}${WWWDIR}/templates_c