Removing showing updates on never updated assets

[DimitarSD]

Fixes #436
Closes oceanprotocol/ocean-subgraph#54

Changes proposed in this PR:

• Removes datatokens.createTime & datatokens.tx from the ReceiptData query
• Removes showing updates on never updates assets (using only datatokens.updates)

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[kremalicious]

yeah, that package-lock: long story short, with npm v7 (which is default with Node.js v15) the lock file will automatically be updated to lockfileVersion v2 upon doing npm install. But npm v7 comes with some more challenges for us so we were holding off on too many dependency updates.

For now, what would work for this PR, is to get the old Node.js v14/npm v6 lock file, if you use nvm:

nvm use 14
npm i
git commit
git push

This should restore the v1 lock file version. Also we kinda forgot to document the need for npm below v7, since it only arises as problem when adding/changing dependencies.

Other than that, the actual fix works perfectly on first quick look 🥳

[mihaisc]

All good