fix: stop using netstring-stream

Author: warner

packages/SwingSet/package.json

@@ -47,7 +47,6 @@
     "@babel/generator": "^7.6.4",
     "anylogger": "^0.21.0",
     "esm": "^3.2.5",
-    "netstring-stream": "^1.0.1",
     "re2": "^1.10.5",
     "rollup": "^1.23.1",
     "rollup-plugin-node-resolve": "^5.2.0",

yarn.lock

@@ -7012,13 +7012,6 @@ neo-async@^2.6.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
   integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
 
-netstring-stream@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/netstring-stream/-/netstring-stream-1.0.1.tgz#d1babecbc4715428154d2956201bc8be3a526729"
-  integrity sha512-/lXoL4KEi8Cty/AsjPkDF7S/cPaHSDMU8PU4NbJNDbW7EhMIb8o6JJA9BD4LJPqPBchpEEoKAluI+BxuqJkR9g==
-  dependencies:
-    through2 "^2.0.3"
-
 nice-try@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
@@ -10174,7 +10167,7 @@ thenify-all@^1.0.0:
   dependencies:
     any-promise "^1.0.0"
 
-through2@^2.0.0, through2@^2.0.2, through2@^2.0.3:
+through2@^2.0.0, through2@^2.0.2:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.5.tgz#01c1e39eb31d07cb7d03a96a70823260b23132cd"
   integrity sha512-/mrRod8xqpA+IHSLyGCQ2s8SPHiCDEeQJSep1jqLYeEUClOFG2Qsh+4FU6G9VeqpZnGW/Su8LQGc4YKni5rYSQ==