Fix jlpm integrity issues.

packages/codeeditor/package.json

@@ -31,16 +31,13 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^0.19.1",
     "@jupyterlab/coreutils": "^2.2.1",
     "@jupyterlab/observables": "^2.1.1",
     "@phosphor/coreutils": "^1.3.0",
     "@phosphor/disposable": "^1.1.2",
     "@phosphor/messaging": "^1.2.2",
     "@phosphor/signaling": "^1.2.2",
-    "@phosphor/widgets": "^1.6.0",
-    "react": "~16.4.2",
-    "react-dom": "~16.4.2"
+    "@phosphor/widgets": "^1.6.0"
   },
   "devDependencies": {
     "rimraf": "~2.6.2",

packages/codeeditor/tsconfig.json

@@ -6,9 +6,6 @@
   },
   "include": ["src/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../coreutils"
     },

packages/running/package.json

@@ -35,11 +35,8 @@
     "@jupyterlab/coreutils": "^2.2.1",
     "@jupyterlab/services": "^3.2.1",
     "@phosphor/algorithm": "^1.1.2",
-    "@phosphor/messaging": "^1.2.2",
     "@phosphor/signaling": "^1.2.2",
-    "@phosphor/widgets": "^1.6.0",
-    "react": "~16.4.2",
-    "react-dom": "~16.4.2"
+    "react": "~16.4.2"
   },
   "devDependencies": {
     "rimraf": "~2.6.2",