root: upgrade to 5.34.19, workaround ROOT-5773

This is a follow up on #853 .

Due to https://sft.its.cern.ch/jira/browse/ROOT-5773 newest freetype from XQuartz conflicts with ROOT FTGL.
This bug seems to be a "wontfix", so I think we should follow the original suggestion by @cshimmin and use --enable-builtin-freetype . I've removed 'with-x11' requirement that was in the original path because Cocoa backend sets builtin freetype unconditionally.

Looks like Mac Ports gave up on this a long time ago: https://trac.macports.org/changeset/114085

This should fix #1094 .