Apply suggestion from code review

remove temporary types copying

Author: Lms24

scripts/postbuild.sh

@@ -23,10 +23,6 @@ for f in $ASSETS; do
   cp $f $BUILD_DIR/
 done
 
-# TEMPORARY (TODO remove in v7) copy types to esm and dist
-cp -r $BUILD_DIR/types/ $BUILD_DIR/dist
-cp -r $BUILD_DIR/types/ $BUILD_DIR/esm
-
 # package.json modifications
 
 # sed command to modify package.json entry points in build dir