build: remove unneeded graceful-fs package and resolution workaround

The `graceful-fs` package itself is unused within the repository code
and can be removed. The resolution workaround is no longer required
for any direct or transitive dependency based on the issue referenced
via angular#28213.

package.json

@@ -108,7 +108,6 @@
     "d3": "^7.0.0",
     "diff": "^5.0.0",
     "domino": "https://github.com/angular/domino.git#9e7881d2ac1e5977cefbc557f935931ec23f6658",
-    "graceful-fs": "4.2.11",
     "hammerjs": "~2.0.8",
     "http-server": "^14.0.0",
     "incremental-dom": "0.7.0",
@@ -198,11 +197,9 @@
     "vrsource-tslint-rules": "6.0.0",
     "xregexp": "^5.1.1"
   },
-  "// 4": "Overwrite graceful-fs to a version that does not rely on the 'natives' package. This fixes gulp for >= 10.13, more information: #28213",
-  "// 5": "Ensure that transitive dependencies on `https-proxy-agent` are at minimum v5 as older versions patch NodeJS directly, breaking tools like webdriver which is used by the karma-sauce-launcher as an example.",
-  "// 6": "Ensure that a single instance of the `saucelabs` package is used. Protractor and the Karma sauce launcher pull this package as dependency. A single instance allows for e.g. easier patching in the Karma config.",
+  "// 3": "Ensure that transitive dependencies on `https-proxy-agent` are at minimum v5 as older versions patch NodeJS directly, breaking tools like webdriver which is used by the karma-sauce-launcher as an example.",
+  "// 4": "Ensure that a single instance of the `saucelabs` package is used. Protractor and the Karma sauce launcher pull this package as dependency. A single instance allows for e.g. easier patching in the Karma config.",
   "resolutions": {
-    "**/graceful-fs": "4.2.11",
     "**/https-proxy-agent": "7.0.2",
     "**/saucelabs": "7.4.0"
   }

yarn.lock

@@ -9148,7 +9148,12 @@ got@^11.0.2, got@^11.8.6:
     p-cancelable "^2.0.0"
     responselike "^2.0.0"
 
-graceful-fs@4.2.10, graceful-fs@4.2.11, graceful-fs@^4.0.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9, graceful-fs@^4.2.0, graceful-fs@^4.2.10, graceful-fs@^4.2.4, graceful-fs@^4.2.6, graceful-fs@^4.2.9:
+graceful-fs@4.2.10:
+  version "4.2.10"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.10.tgz#147d3a006da4ca3ce14728c7aefc287c367d7a6c"
+  integrity sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==
+
+graceful-fs@^4.0.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9, graceful-fs@^4.2.0, graceful-fs@^4.2.10, graceful-fs@^4.2.4, graceful-fs@^4.2.6, graceful-fs@^4.2.9:
   version "4.2.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.11.tgz#4183e4e8bf08bb6e05bbb2f7d2e0c8f712ca40e3"
   integrity sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==