deps!: update interface-datastore to 8.x.x (libp2p#70)

Also removes unsused prodction deps

Author: achingbrain

package.json

@@ -153,11 +153,7 @@
     "@libp2p/peer-id": "^2.0.0",
     "@libp2p/peer-record": "^5.0.0",
     "@multiformats/multiaddr": "^11.0.0",
-    "interface-datastore": "^7.0.0",
-    "it-all": "^2.0.0",
-    "it-filter": "^2.0.0",
-    "it-foreach": "^1.0.0",
-    "it-map": "^2.0.0",
+    "interface-datastore": "^8.0.0",
     "mortice": "^3.0.0",
     "multiformats": "^11.0.0",
     "protons-runtime": "^5.0.0",
@@ -168,7 +164,7 @@
     "@libp2p/peer-id-factory": "^2.0.0",
     "@libp2p/utils": "^3.0.2",
     "aegir": "^38.1.6",
-    "datastore-core": "^8.0.1",
+    "datastore-core": "^9.0.1",
     "delay": "^5.0.0",
     "p-defer": "^4.0.0",
     "p-wait-for": "^5.0.0",