Revert kernel-devsrc fix on linux-ti

Revert kernel-devsrc fix on linux-ti

This reverts commit 4bfc821810cdee47611c6d3e94d771971f51fa75.

The fix on linux-ti-staging is superseeded by https://gerrit.automotivelinux.org/gerrit/#/c/11209/

Bug-AGL: SPEC-933

Change-Id: Ic41ba32451ef2c16a34c9e3879d4f86630ede058
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/11227
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>