Revert "shared/helpers.h: Migrate helpers.h to libweston"
This is problematic as we don't have namespacing for these and some of the macros can interfere with other defines.
This reverts commit 8634c7e3.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
This is problematic as we don't have namespacing for these and some of the macros can interfere with other defines.
This reverts commit 8634c7e3.