removed unused dep

package.json

@@ -138,8 +138,7 @@
         "stylelint-webpack-plugin": "^0.10.5",
         "trezor-translations-manager": "^1.0.4",
         "webpack-cli": "^3.2.3",
-        "webpack-dev-server": "^3.1.14",
+        "webpack-dev-server": "^3.1.14"
-        "yargs": "12.0.5"
     },
     "optionalDependencies": {
         "fsevents": "1.2.7"

yarn.lock

@@ -12266,7 +12266,7 @@ yargs@12.0.2:
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^10.1.0"
 
-yargs@12.0.5, yargs@^12.0.2, yargs@^12.0.4, yargs@^12.0.5:
+yargs@^12.0.2, yargs@^12.0.4, yargs@^12.0.5:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
   integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==