supportsGoodDecimals_ not used anywhere so was removed

package.json

@@ -157,7 +157,7 @@
     "@hkdobrev/run-if-changed": "^0.3.1",
     "@mysticatea/eslint-plugin": "^13.0.0",
     "@rollup/plugin-babel": "^5.2.1",
-    "@rollup/plugin-commonjs": "^15.0.0",
+    "@rollup/plugin-commonjs": "^15.1.0",
     "@rollup/plugin-dynamic-import-vars": "^1.1.0",
     "@rollup/plugin-node-resolve": "^9.0.0",
     "@rollup/plugin-replace": "^2.3.3",
@@ -203,7 +203,7 @@
     "husky": "^4.3.0",
     "imageoptim-cli": "^3.0.2",
     "jamilih": "^0.53.2",
-    "jsdoc": "^3.6.5",
+    "jsdoc": "^3.6.6",
     "license-badger": "^0.18.0",
     "lint-staged": "^10.4.0",
     "load-stylesheets": "^0.9.0",
@@ -223,7 +223,7 @@
     "remark-lint-ordered-list-marker-value": "^2.0.1",
     "requirejs": "^2.3.6",
     "rimraf": "^3.0.2",
-    "rollup": "2.27.1",
+    "rollup": "2.28.1",
     "rollup-plugin-copy": "^3.3.0",
     "rollup-plugin-filesize": "^9.0.2",
     "rollup-plugin-node-polyfills": "^0.2.1",