doc: remove sixels from the TODO list

jparise · jparise · commit 41d64d886ab6 · 2024-11-22T16:41:24.000-05:00
Per ghostty-org#2496
diff --git a/TODO.md b/TODO.md
@@ -19,4 +19,3 @@ Mac:
 Major Features:
 
 - Bell
-- Sixels: https://saitoha.github.io/libsixel/

Original file line number	Diff line number	Diff line change
`@@ -19,4 +19,3 @@ Mac:`
`19`	`19`	`Major Features:`
`20`	`20`
`21`	`21`	`- Bell`
`22`		`-- Sixels: https://saitoha.github.io/libsixel/`