fix: unused import (#1073)

Noticed this unneeded import in code blocks

Co-authored-by: Ryan Carniato <[email protected]>

docs/core-concepts/data-loading.mdx

@@ -32,7 +32,7 @@ export function routeData() {
 Now your component can use the `useRouteData` function to access the data that is returned by `routeData`.
 
 ```tsx twoslash filename="/routes/students.tsx"
-import { For, Accessor, createResource } from "solid-js";
+import { For, createResource } from "solid-js";
 import { useRouteData } from "solid-start";
 
 type Student = { name: string; house: string; }
@@ -72,7 +72,7 @@ Okay, enough with the rules. We thought `createResource` was too low level for m
 Here's the same example as above, but using `createRouteData`:
 
 ```tsx twoslash filename="/routes/students.tsx"
-import { For, Accessor, createResource } from "solid-js";
+import { For, createResource } from "solid-js";
 import { useRouteData, createRouteData } from "solid-start";
 
 type Student = { name: string; house: string; }
@@ -106,7 +106,7 @@ It could be database access, or internal APIs, etc. It could sit within your fun
 ```tsx twoslash {8} filename="/routes/students.tsx"
 const hogwarts = { students: { list() { return [] as Student[] } } }
 // ---cut---
-import { For, Accessor, createResource } from "solid-js";
+import { For, createResource } from "solid-js";
 import { useRouteData } from "solid-start";
 import { createServerData$ } from "solid-start/server";
 
@@ -138,7 +138,7 @@ For example, you might have a route that needs to load data from a database and
 ```tsx twoslash filename="/routes/students.tsx"
 const hogwarts = { students: { list() { return [] } } }
 // ---cut---
-import { For, Accessor, createResource } from "solid-js";
+import { For, createResource } from "solid-js";
 import { useRouteData, createRouteData } from "solid-start";
 import { createServerData$ } from "solid-start/server";