Uninstall unused multiplex

package-lock.json

@@ -40556,18 +40556,6 @@
         "duplexer2": "0.0.2"
       }
     },
-    "multiplex": {
-      "version": "6.7.0",
-      "resolved": "https://registry.npmjs.org/multiplex/-/multiplex-6.7.0.tgz",
-      "integrity": "sha1-/3Pk5AB5FwxEQtFgllZY+N75YMI=",
-      "requires": {
-        "duplexify": "^3.4.2",
-        "inherits": "^2.0.1",
-        "readable-stream": "^2.0.2",
-        "varint": "^4.0.0",
-        "xtend": "^4.0.0"
-      }
-    },
     "mustache": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/mustache/-/mustache-3.0.1.tgz",
@@ -53169,11 +53157,6 @@
       "integrity": "sha1-HCQ6ULWVwb5Up1S/7OhWO5/42BM=",
       "dev": true
     },
-    "varint": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/varint/-/varint-4.0.1.tgz",
-      "integrity": "sha1-SQgpuULSSEY7KzUJeZXDv3NxmOk="
-    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",

package.json

@@ -125,7 +125,6 @@
     "metamask-logo": "^2.1.4",
     "mkdirp": "^0.5.1",
     "multihashes": "^0.4.12",
-    "multiplex": "^6.7.0",
     "nonce-tracker": "^1.0.0",
     "number-to-bn": "^1.7.0",
     "obj-multiplex": "^1.0.0",