Avoid shadowing ESLint config in package.json

.eslintrc

@@ -1,6 +0,0 @@
-{
-  "extend": "openlayers",
-  "rules": {
-    "no-console": [2, {"allow": ["assert"]}]
-  }
-}

package.json

@@ -83,6 +83,7 @@
       "proj4": false
     },
     "rules": {
+      "no-console": [2, {"allow": ["assert"]}],
       "no-constant-condition": 0
     }
   },