remove unused dep

Author: charlierudolph

package.json

@@ -186,7 +186,6 @@
     "figures": "^3.2.0",
     "glob": "^7.1.6",
     "indent-string": "^4.0.0",
-    "is-generator": "^1.0.3",
     "is-stream": "^2.0.0",
     "knuth-shuffle-seeded": "^1.0.6",
     "mz": "^2.7.0",

yarn.lock

@@ -2372,11 +2372,6 @@ is-fullwidth-code-point@^3.0.0:
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz#f116f8064fe90b3f7844a38997c0b75051269f1d"
   integrity sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==
 
-is-generator@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/is-generator/-/is-generator-1.0.3.tgz#c14c21057ed36e328db80347966c693f886389f3"
-  integrity sha1-wUwhBX7TbjKNuANHlmxpP4hjifM=
-
 is-glob@^4.0.0, is-glob@^4.0.1, is-glob@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.1.tgz#7567dbe9f2f5e2467bc77ab83c4a29482407a5dc"