Remove test that breaks npm test (no artifact)

[marcusrbrown]

Without this fix, npm test fails with the following:

$ npm test


> instadapp-contracts@0.0.2 test /Users/mrbrown/git/igetgames/contract-v2
> npm run ganache sleep 5 && truffle test && npm run stop


> instadapp-contracts@0.0.2 ganache /Users/mrbrown/git/igetgames/contract-v2
> ganache-cli -e 300 -p 9545 -m 'candy maple cake sugar pudding cream honey rich smooth crumble sweet treat' --accounts 30 > /dev/null & "sleep" "5"

Using network 'test'.


Compiling your contracts...
===========================
> Compiling ./contracts/ProxyLogics/InstaMakerCompBridge.sol

Error: Error: Could not find artifacts for Ownable from any sources
    at Object.run (/Users/mrbrown/git/igetgames/contract-v2/node_modules/truffle/build/webpack:/packages/migrate/index.js:96:1)
    at process._tickCallback (internal/process/next_tick.js:68:7)
Truffle v5.0.35 (core: 5.0.35)
Node v10.16.3
npm ERR! Test failed.  See above for more details.

It looks like Ownable was in the old InstaContract repo and its artifacts are not available in this repo, so I removed the test.