common.sh: drop unused get_sysroot_config/set_variable
The last user of these went away when we moved install_toolchain to
chromite. Drop them here too.
We still keep get_variable because it's used by install_libc which is
still used during build_image.
BUG=chromium:875008
TEST=precq passes
Change-Id: Ia9913f2c939c40a5a38bb7dec457f7ec4be374b6
Reviewed-on: https://chromium-review.googlesource.com/1483764
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
1 file changed
