removed old scripts, LayoutType proper enum

lib/src/commands/LayoutTreeCrawler.ts

 import * as _ from 'lodash';
 import { OptionsProcessor } from './OptionsProcessor';
-import { LayoutType, isLayoutType } from './LayoutType';
+import { LayoutType } from './LayoutType';
 
 export interface Data {
   name?: string;
   }
 
   _assertKnownLayoutType(type) {
-    if (!isLayoutType(type)) {
+    if (!LayoutType[type]) {
       throw new Error(`Unknown layout type ${type}`);
     }
   }

lib/src/commands/LayoutType.test.ts

-import { LayoutType, isLayoutType } from './LayoutType';
+import { LayoutType } from './LayoutType';
 
 describe('LayoutType', () => {
   it('is an enum', () => {
     expect(LayoutType[name]).toEqual(LayoutType.Stack);
     expect(LayoutType['asdasd']).toEqual(undefined); //tslint:disable-line
   });
-
-  it('isLayoutType', () => {
-    expect(isLayoutType('')).toBe(false);
-    expect(isLayoutType('asdasd')).toBe(false);
-    expect(isLayoutType('TopTabs')).toBe(true);
-    expect(isLayoutType('isLayoutType')).toBe(false);
-  });
 });

lib/src/commands/LayoutType.ts

   TopTabs = 'TopTabs',
   ExternalComponent = 'ExternalComponent'
 }
-
-export function isLayoutType(name: string): boolean {
-  return !!LayoutType[name];
-}

scripts/env/env-android.sh

-#!/bin/bash -e
-
-scriptdir="$(dirname "${BASH_SOURCE[0]}")"
-
-export ANDROID_HOME=$HOME/android-sdk
-export PATH=$PATH:$ANDROID_HOME/tools/bin:$ANDROID_HOME/platform-tools
-
-mkdir $ANDROID_HOME
-
-# fix for https://code.google.com/p/android/issues/detail?id=223424
-mkdir -p ~/.android
-touch ~/.android/repositories.cfg
-
-echo "Downloading Android SDK"
-curl https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip > android-sdk.zip
-unzip android-sdk.zip -d $ANDROID_HOME
-
-echo "Accepting Android Licenses"
-yes | sdkmanager --licenses

scripts/env/env-ios.sh

-#!/bin/bash -e
-
-brew tap wix/brew
-brew install wix/brew/applesimutils