Remove nostr-wasm, add event validation sampling

packages/util/src/Events.ts

@@ -1,16 +1,9 @@
-import {initNostrWasm, type Nostr} from 'nostr-wasm'
 import {verifiedSymbol, getEventHash, verifyEvent} from 'nostr-tools'
 import {cached, pick, now} from '@welshman/lib'
 import {Tags} from './Tags'
 import {getAddress} from './Address'
 import {isEphemeralKind, isReplaceableKind, isPlainReplaceableKind, isParameterizedReplaceableKind} from './Kinds'
 
-let nw: Nostr
-
-initNostrWasm().then(nostrWasm => {
-  nw = nostrWasm
-})
-
 export type EventContent = {
   tags: string[][]
   content: string
@@ -109,7 +102,7 @@ const _hasValidSignature = cached<string, boolean, [SignedEvent]>({
   },
   getValue: ([e]: [SignedEvent]) => {
     try {
-      nw ? nw.verifyEvent(e) : verifyEvent(e)
+      verifyEvent(e)
     } catch (err) {
       return false
     }