base: Remove `ucd` dependency (#32424)

Remove the `ucd` dependency which has not been updated in 8 years. In
addition, replace it with a generated UnicodeBlock enum which reflects
the modern Unicode standard. This is generated via a Python script which
is included in the repository. The generation is not part of the build
process, because the Unicode database is hosted on the web and it does
not change the frequently.

This is done instead of bringing in the more up-to-date `unicode_blocks`
dependency. `unicode_blocks` defines each block as constant, which means
that they cannot be used in match statements -- which we do in Servo.

Co-authored-by: Lauryn Menard <lauryn.menard@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/components/layout/text.rs b/components/layout/text.rs
index 444bf9d1297..e52484c3113 100644
--- a/components/layout/text.rs
+++ b/components/layout/text.rs
@@ -9,10 +9,10 @@ use std::collections::LinkedList;
 use std::sync::Arc;
 
 use app_units::Au;
+use base::text::is_bidi_control;
 use gfx::font::{self, FontMetrics, FontRef, RunMetrics, ShapingFlags, ShapingOptions};
 use gfx::font_cache_thread::FontIdentifier;
 use gfx::text::glyph::ByteIndex;
-use gfx::text::util::is_bidi_control;
 use log::{debug, warn};
 use range::Range;
 use style::computed_values::text_rendering::T as TextRendering;