Kill Flow support

Summary:
* Removed Flow compilation step
* Removed all `flow` annotations
* Removed all FlowFixMe's
* Removed flow typings for Flipper
* Left flow transpilation (stripping) in babel, in case there is any external user using Flow in his plugin
* Left `eslint-plugin-flowtype` dependencies, as `eslint-config-fbjs` requires it

Reviewed By: passy

Differential Revision: D24755545

fbshipit-source-id: 9c0a7910657fd1cba88294e041bf2bfdf7b565bf

flipper-js-client-sdk/.eslintrc.js

@@ -22,7 +22,7 @@ const prettierConfig = {
   trailingComma: 'all',
   bracketSpacing: false,
   jsxBracketSameLine: true,
-  parser: 'flow',
+  parser: '',
 };
 
 module.exports = {
@@ -59,7 +59,6 @@ module.exports = {
     // additional rules for this project
     'header/header': [2, 'block', {pattern}],
     'prettier/prettier': [2, prettierConfig],
-    'flowtype/object-type-delimiter': [0],
     'import/no-unresolved': [2, {commonjs: true, amd: true}],
   },
   settings: {