Remove node-pty

This was for the ssh server we removed.

package.json

@@ -54,7 +54,6 @@
     "http-proxy": "^1.18.0",
     "httpolyglot": "^0.1.2",
     "limiter": "^1.1.5",
-    "node-pty": "^0.9.0",
     "pem": "^1.14.2",
     "safe-compare": "^1.1.4",
     "semver": "^7.1.3",

yarn.lock

@@ -4515,7 +4515,7 @@ mute-stream@0.0.8:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.8.tgz#1630c42b2251ff81e2a283de96a5497ea92e5e0d"
   integrity sha512-nnbWWOkoWyUsTjKrhgD0dcz22mdkSnpYqbEjIm2nhwhuxlSkpywJmBo8h0ZqJdkp73mb90SssHkN4rsRaBAfAA==
 
-nan@^2.12.1, nan@^2.14.0:
+nan@^2.12.1:
   version "2.14.1"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
   integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
@@ -4594,13 +4594,6 @@ node-libs-browser@^2.0.0:
     util "^0.11.0"
     vm-browserify "^1.0.1"
 
-node-pty@^0.9.0:
-  version "0.9.0"
-  resolved "https://registry.yarnpkg.com/node-pty/-/node-pty-0.9.0.tgz#8f9bcc0d1c5b970a3184ffd533d862c7eb6590a6"
-  integrity sha512-MBnCQl83FTYOu7B4xWw10AW77AAh7ThCE1VXEv+JeWj8mSpGo+0bwgsV+b23ljBFwEM9OmsOv3kM27iUPPm84g==
-  dependencies:
-    nan "^2.14.0"
-
 node-releases@^1.1.53:
   version "1.1.53"
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.53.tgz#2d821bfa499ed7c5dffc5e2f28c88e78a08ee3f4"