docs: cleanup showcase (#1818)

Aaron Pham

2025-03-10 aca0c330e70fc4c0aee22560f5fdaac2d7fb41e9

 docs/advanced/making plugins.md

@@ -99,8 +99,6 @@
            },
          ],
        }
      } else {
        return {}
      }
    },
  }