env: Inline env_get_char() into its only user
This function is a relic from the past when environment was read from
underlying device one character at a time.
It is used only in the case when getting an environemnt variable prior
relocation, and the function is simple enough to be inlined there.
Since env_get_char() is being changed to simple access to an array, we
can drop the failing cases and simplify the code (this could have been
done before, since env_get_char() did not fail even before).
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
4 files changed