Revert preact signals support (#4843)

* Revert "Update preact example to match @astrojs/preact ranges (#4840)"

This reverts commit d650a1161a0288f8f2d35ae67771279d067920e9.

* Revert "[ci] format"

This reverts commit e3c78c5b164c338389c437743ba02a7be64e27fb.

* Revert "Support shared signals in Preact islands (#4763)"

This reverts commit 5e46be54683592773e6dfc2d33825493886114b0.

1 files changed, 0 insertions, 33 deletions

diff --git a/packages/integrations/preact/src/client.ts b/packages/integrations/preact/src/client.ts
deleted file mode 100644
index 4549e79f4..000000000
--- a/packages/integrations/preact/src/client.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-import { h, render } from 'preact';
-import StaticHtml from './static-html.js';
-import type { SignalLike } from './types';
-
-const sharedSignalMap: Map<string, SignalLike> = new Map();
-
-export default (element: HTMLElement) =>
-	async (
-		Component: any,
-		props: Record<string, any>,
-		{ default: children, ...slotted }: Record<string, any>
-	) => {
-		if (!element.hasAttribute('ssr')) return;
-		for (const [key, value] of Object.entries(slotted)) {
-			props[key] = h(StaticHtml, { value, name: key });
-		}
-		let signalsRaw = element.dataset.preactSignals;
-		if (signalsRaw) {
-			const { signal } = await import('@preact/signals');
-			let signals: Record<string, string> = JSON.parse(element.dataset.preactSignals as string);
-			for (const [propName, signalId] of Object.entries(signals)) {
-				if (!sharedSignalMap.has(signalId)) {
-					const signalValue = signal(props[propName]);
-					sharedSignalMap.set(signalId, signalValue);
-				}
-				props[propName] = sharedSignalMap.get(signalId);
-			}
-		}
-		render(
-			h(Component, props, children != null ? h(StaticHtml, { value: children }) : children),
-			element
-		);
-	};