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

.flowconfig

@@ -1,47 +1,2 @@
 [ignore]
-.*/coverage/.*
-.*/build/.*
-.*/dist/.*
-.*\.tsx
-.*\.ts
-.*/node_modules/.*
-<PROJECT_ROOT>/facebook/.*
-<PROJECT_ROOT>/scripts/.*
-<PROJECT_ROOT>/desktop/.*/lib/.*
-<PROJECT_ROOT>/desktop/scripts/.*
-<PROJECT_ROOT>/desktop/static/.*
-<PROJECT_ROOT>/desktop/pkg/.*
-<PROJECT_ROOT>/desktop/pkg-lib/.*
-<PROJECT_ROOT>/desktop/doctor/.*
-<PROJECT_ROOT>/desktop/app/.*
-<PROJECT_ROOT>/desktop/babel-transformer/.*
-<PROJECT_ROOT>/desktop/plugins/fb/relaydevtools/relay-devtools/DevtoolsUI.js$
-<PROJECT_ROOT>/website/.*
-<PROJECT_ROOT>/desktop/plugins/sections/src/d3/d3.js$
-<PROJECT_ROOT>/react-native/ReactNativeFlipperExample/.*
-
-[libs]
-desktop/flow-typed
-
-[options]
-esproposal.export_star_as=enable
-esproposal.optional_chaining=enable
-module.use_strict=true
-emoji=true
-all=true
-include_warnings=true
-module.name_mapper='^\(.*\)\.tsx$' -> 'TsStub'
-suppress_type=$FlowFixMe
-module.system=haste
-
-[strict]
-deprecated-type
-nonstrict-import
-sketchy-null
-unclear-type
-unsafe-getters-setters
-untyped-import
-untyped-type-import
-
-[version]
-0.131.0
+.*