Merge pull request devcontainers#177 from devcontainers/cpp-no-git

Drop git feature from C++ since its in upstream

Author: jkeech

src/cpp/.devcontainer/devcontainer.json

@@ -3,17 +3,8 @@
 		"dockerfile": "./Dockerfile",
 		"context": "."
 	},
-	"features": {
-        "ghcr.io/devcontainers/features/git:1": {
-            "version": "latest",
-            "ppa": "false"
-        }
-    },
-	"runArgs": [
-		"--cap-add=SYS_PTRACE",
-		"--security-opt",
-		"seccomp=unconfined"
-	],
+	"capAdd": ["SYS_PTRACE"],
+	"securityOpt": ["seccomp=unconfined"],
 	// Configure tool-specific properties.
 	"customizations": {
 		// Configure properties specific to VS Code.