fix(script): fix compile-to-es5 script (#4676)

make compile-to-es5 script rely on native es6-promise typing

scripts/compile_to_es5.sh

@@ -7,33 +7,15 @@ if [ "$#" -gt 0 ]; then
   exit 1
 fi
 
-echo "Getting types for es6 promises..."
-npm install @types/es6-promise
-if [ $? -ne 0 ]; then
-  echo -e "\033[0;31m" 1>&2 # Red
-  echo "Couldn't get types for es6 promises."
-  echo -e "\033[0m" 1>&2 # Normal Color
-  exit 1
-fi
-
 echo "Compiling down to es5..."
-node node_modules/typescript/bin/tsc --target es5
+node node_modules/typescript/bin/tsc --target es5 --lib DOM,ES5,ScriptHost,ES2015.Promise
 if [ $? -ne 0 ]; then
   echo -e "\033[0;31m" 1>&2 # Red
   echo "Couldn't compile for es5."
   echo -e "\033[0m" 1>&2 # Normal Color
-  npm remove @types/es6-promise
   exit 1
 fi
 
-echo "Uninstalling types for es6 promises..."
-npm remove @types/es6-promise
-if [ $? -ne 0 ]; then
-  echo -e "\033[0;33m" 1>&2 # Yellow
-  echo "Warning: couldn't uninstall types for es6 promises"
-  echo -e "\033[0m" 1>&2 # Normal Color
-fi
-
 echo -e "\033[0;32m" # Green
 echo "Compiled to es5"
 echo -e "\033[0m" 1>&2 # Normal Color