Drop unneeded settings for devcontainer.json (VSCode already handles them automatically).

.devcontainer/devcontainer.example.json

@@ -1,9 +1,6 @@
 {
   "name": "Laradock",
-  "dockerComposeFile": [
-    "../docker-compose.yml",
-    "docker-compose.extend.yml"
-  ],
+  "dockerComposeFile": "../docker-compose.yml",
   "remoteUser": "laradock",
   "runServices": [
     "nginx",

.devcontainer/docker-compose.extend-example.yml

@@ -1,6 +0,0 @@
-version: '3'
-services:
-  workspace:
-    volumes:
-      - ~/.gitconfig:/home/laradock/.gitconfig
-      - ~/.ssh:/home/laradock/.ssh:ro