Chore: remove flow

Author: agurtovoy

package.json

@@ -10,7 +10,6 @@
     "build": "yarn run build:clean && yarn run build:lib",
     "build:clean": "rimraf lib",
     "build:lib": "babel -d lib src --ignore '**/__tests__/**'",
-    "build:flow": "flow-copy-source -v -i '**/__tests__/**' src lib",
     "ci-build": "yarn run build",
     "ci-release-notes": "conventional-github-releaser -p eslint"
   },
@@ -37,7 +36,6 @@
     "babel-register": "^6.26.0",
     "conventional-github-releaser": "^2.0.0",
     "eslint": "^4.15.0",
-    "flow-bin": "^0.63.1",
     "gulp": "^3.9.1",
     "rimraf": ">=2.6.1",
     "yargs": "^10.0.3"

yarn.lock

@@ -1996,10 +1996,6 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flow-bin@^0.63.1:
-  version "0.63.1"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.63.1.tgz#ab00067c197169a5fb5b4996c8f6927b06694828"
-
 follow-redirects@^1.2.5:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.4.1.tgz#d8120f4518190f55aac65bb6fc7b85fcd666d6aa"