fix: add missing dependency async-iterator-all (#26)

Also cleans up the other dependencies.

License: MIT
Signed-off-by: Alan Shaw <alan.shaw@protocol.ai>

package.json

@@ -39,7 +39,6 @@
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs-importer#readme",
   "devDependencies": {
     "aegir": "^18.0.2",
-    "async-iterator-all": "^1.0.0",
     "async-iterator-buffer-stream": "^1.0.0",
     "async-iterator-last": "^1.0.0",
     "chai": "^4.2.0",
@@ -51,15 +50,12 @@
     "ipld-in-memory": "^2.0.0",
     "multihashes": "~0.4.14",
     "nyc": "^14.0.0",
-    "pull-generate": "^2.2.0",
-    "pull-traverse": "^1.0.3",
     "sinon": "^7.1.0"
   },
   "dependencies": {
-    "async": "^2.6.1",
+    "async-iterator-all": "^1.0.0",
     "async-iterator-batch": "~0.0.1",
     "async-iterator-first": "^1.0.0",
-    "async-iterator-to-pull-stream": "^1.3.0",
     "bl": "^3.0.0",
     "deep-extend": "~0.6.0",
     "err-code": "^1.1.2",
@@ -69,8 +65,6 @@
     "left-pad": "^1.3.0",
     "multicodec": "~0.5.1",
     "multihashing-async": "~0.7.0",
-    "stream-to-async-iterator": "~0.2.0",
-    "stream-to-pull-stream": "^1.7.2",
     "superstruct": "~0.6.1"
   },
   "optionalDependencies": {