test: remove unused tsd test (#169)

Author: dsanders11

package.json

@@ -18,17 +18,13 @@
     "prettier": "^3.0.3",
     "standard": "^14.3.4",
     "standard-markdown": "^6.0.0",
-    "tsd": "^0.25.0",
     "typescript": "^4.9.4"
   },
   "scripts": {
     "prepare": "tsc",
-    "test": "jest && tsd && standard --fix && standard-markdown",
+    "test": "jest && standard --fix && standard-markdown",
     "watch": "jest --watch --notify --notifyMode=change --coverage"
   },
-  "tsd": {
-    "directory": "test"
-  },
   "standard": {
     "env": {
       "jest": true