Remove seemingly-unnecessary semver dependency (#586)

Author: ExplodingCabbage

package.json

@@ -80,7 +80,6 @@
     "mocha": "^7.0.0",
     "rollup": "^4.13.0",
     "rollup-plugin-babel": "^4.2.0",
-    "semver": "^7.6.0",
     "webpack": "^5.90.3",
     "webpack-dev-server": "^5.0.3"
   },