refactor(tui): remove unused fade file path (#39954)

Co-authored-by: Kit Langton <kit.langton@gmail.com>

packages/tui/src/ui/fade-file-path.tsx

@@ -1,56 +0,0 @@
-import type { RGBA } from "@opentui/core"
-import { createEffect, createMemo, createSignal, Show } from "solid-js"
-import { useConfig } from "../config"
-import { tint } from "../theme/color"
-import { createAnimatable, tween } from "./animation"
-import { FilePath } from "./file-path"
-
-// FilePath that crossfades when its value changes: the old path fades to the
-// background, the text swaps at the midpoint, and the new path fades back in.
-// The initial value renders immediately; only subsequent changes animate.
-export function FadeFilePath(props: {
-  value: string | undefined
-  maxWidth: number
-  fg: RGBA
-  bg: RGBA
-  basenameFg?: RGBA
-}) {
-  const config = useConfig().data
-  const fade = createAnimatable(
-    { front: 1 },
-    {
-      enabled: () => config.animations ?? true,
-      transition: tween({ duration: 0.3 }),
-    },
-  )
-  const [text, setText] = createSignal(props.value)
-  const [previous, setPrevious] = createSignal<string>()
-
-  createEffect((current: string | undefined) => {
-    const next = props.value
-    if (next === undefined || next === current) return current
-    setText(next)
-    if (current === undefined) return next
-    setPrevious(current)
-    fade.jump({ front: 0 })
-    fade.animate({ front: 1 })
-    return next
-  }, props.value)
-
-  const display = createMemo(() => (previous() !== undefined && fade.value().front < 0.5 ? previous() : text()))
-  const fg = createMemo(() => {
-    if (previous() === undefined || fade.value().front >= 1) return props.fg
-    return tint(props.bg, props.fg, Math.abs(fade.value().front * 2 - 1))
-  })
-
-  return (
-    <Show when={display() !== undefined}>
-      <FilePath
-        value={display() ?? ""}
-        maxWidth={props.maxWidth}
-        fg={fg()}
-        basenameFg={fade.value().front >= 1 ? props.basenameFg : undefined}
-      />
-    </Show>
-  )
-}