remove unused type

packages/svelte/src/internal/client/types.d.ts

@@ -87,11 +87,7 @@ export type Computation<V = unknown> = {
 	/** The types that the signal represent, as a bitwise value */
 	f: SignalFlags;
 	/** init: The function that we invoke for effects and computeds */
-	i:
-		| null
-		| (() => V)
-		| (() => void | (() => void))
-		| ((b: Block, s: Signal) => void | (() => void));
+	i: null | (() => V) | (() => void | (() => void)) | ((b: null, s: Signal) => void | (() => void));
 	/** references: Anything that a signal owns */
 	r: null | Computation[];
 	/** value: The latest value for this signal, doubles as the teardown for effects */
@@ -157,8 +153,6 @@ export type EachItemBlock = {
 	k: unknown;
 };
 
-export type Block = EachItemBlock;
-
 export type TransitionFn<P> = (
 	element: Element,
 	props: P,