Revert "kernel:workqueue: 3.4.48 fixups for Unable to handle kernel NULL pointer dereference at virtual address 00000004: PC is at process_one_work+0x3c/0x4a4: LR is at worker_thread+0x16c/0x370"

This reverts commit 59b452006e58385c0031c6d15bc01efe7e8c7229.
Revert "kernel:workqueue: Add check to work and worker objects to make sure they are not passing a NULL var to process_one_work func"

This reverts commit 6dd454f925ea3a63af846423e11132341748db1e.
kernel:workqueue: Try a CM rebase