remove steemjs

package.json

@@ -53,7 +53,6 @@
     "@hiveio/hivescript": "^1.2.0",
     "@steem/crypto-session": "git+https://github.com/steemit/crypto-session.git#83a90b319ce5bc6a70362d52a15a815de7e729bb",
     "big.js": "^5.2.2",
-    "@steemit/steem-js": "0.7.9",
     "assert": "1.4.1",
     "autoprefixer": "^9.6.1",
     "axios": "^0.18.1",