get rid of file systen writing

Author: Trivo25

src/examples/zkfunction/root.ts

@@ -1,4 +1,3 @@
-import { writeFileSync } from 'fs';
 import { Experimental, Field, Gadgets } from 'o1js';
 const { ZkFunction } = Experimental;
 
@@ -40,14 +39,6 @@ ok = await proof.verify(verificationKeyRoundTrip(verificationKey));
 
 console.log('verification key round trip ok?', ok);
 
-console.log('writing proof to file...');
-writeFileSync('zkfunction-proof.json', JSON.stringify(proofRoundTrip(proof).toJSON(), null, 2));
-
-console.log('writing verification key to file...');
-writeFileSync(
-  'zkfunction-verification-key.data',
-  verificationKeyRoundTrip(verificationKey).toString()
-);
 function proofRoundTrip(proof: Experimental.KimchiProof): Experimental.KimchiProof {
   let json = proof.toJSON();
   console.log('proof json:', {