Removing unused yarn resolutions

Summary: These resolutions aren't used, validated with `yarn why`. See the diff higher in the stack for automation.

Reviewed By: yungsters

Differential Revision: D47282205

fbshipit-source-id: a2e909e3802f780fbe7525e5945faebee7004aef

react-native/react-native-flipper/package.json

@@ -38,7 +38,6 @@
     "minimist": "1.2.3",
     "kind-of": "6.0.3",
     "node-fetch": "^2.6.7",
-    "xmldom": "github:xmldom/xmldom#0.7.0",
     "browserslist": "^4.16.5",
     "ws": "7.4.6"
   }

react-native/react-native-flipper/yarn.lock

@@ -6476,10 +6476,6 @@ xmldoc@^1.1.2:
   dependencies:
     sax "^1.2.1"
 
-"xmldom@github:xmldom/xmldom#0.7.0":
-  version "0.7.0"
-  resolved "https://codeload.github.com/xmldom/xmldom/tar.gz/c568938641cc1f121cef5b4df80fcfda1e489b6e"
-
 xpath@^0.0.27:
   version "0.0.27"
   resolved "https://registry.yarnpkg.com/xpath/-/xpath-0.0.27.tgz#dd3421fbdcc5646ac32c48531b4d7e9d0c2cfa92"