ci(toolchain): drop the 2016q3 search path for arm-none-eabi

We maintain up to date toolchains in dedicated paths. This one seems to
be an artefact left over from 2020 that overrides these when running
locally, causing failures. Remove it.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Ie6a85e4c1b7f333d0557a8c7a52733b784c2f341
1 file changed