Remove RoomItemRemoveMember component entirely

src/app/components/RoomItemRemoveMember.svelte

@@ -1,18 +0,0 @@
-<script lang="ts">
-  import type {TrustedEvent} from "@welshman/util"
-  import {getPubkeyTagValues} from "@welshman/util"
-  import ProfileLink from "@app/components/ProfileLink.svelte"
-
-  type Props = {
-    url: string
-    event: TrustedEvent
-  }
-
-  const {url, event}: Props = $props()
-</script>
-
-{#each getPubkeyTagValues(event.tags) as pubkey}
-  <div class="py-1 text-center text-xs opacity-75">
-    <ProfileLink unstyled class="text-primary" {url} {pubkey} /> left the room
-  </div>
-{/each}