Remove setTokenURI function (#139)

* Remove setTokenURI function

* Remove unused assertIsOwner function

smart-contracts/assembly/contracts/NFT/NFT.ts

@@ -24,7 +24,6 @@ import {
   _isApprovedForAll,
   _updateBalanceOf,
   _getBalanceOf,
-  assertIsOwner,
   _constructor,
 } from './NFT-internals';
 
@@ -135,26 +134,6 @@ export function nft1_tokenURI(binaryArgs: StaticArray<u8>): StaticArray<u8> {
   }
 }
 
-/**
- * Set a token URI (external link written in NFT where pictures or others are stored).
- * If not set the tokenURI will be the baseURI + tokenId
- * @param binaryArgs - u64 serialized tokenID with `Args` + URI string
- */
-export function nft1_setTokenURI(binaryArgs: StaticArray<u8>): void {
-  const args = new Args(binaryArgs);
-  const tokenId = args
-    .nextU64()
-    .expect('token id argument is missing or invalid');
-
-  assertIsMinted(tokenId);
-  assertIsOwner(Context.caller().toString(), tokenId);
-
-  Storage.set(
-    tokenURIKey + tokenId.toString(),
-    args.nextString().expect('tokenURI argument is missing or invalid'),
-  );
-}
-
 /**
  * Returns the base URI
  * @param _ - unused see https://github.com/massalabs/massa-sc-std/issues/18