preproc: Finally drop context-through search
preproc: Finally drop context-through search

[backport 290eac75699fb768fdea4588772cf08b5db2788c]

2.09 series was the last one we support context-thru search
(and we were issuing a warning about that) so drop all-context
from get_ctx() routine.

Signed-off-by: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@gmail.com>

projedi/nasm,Distrotech/nasm,projedi/nasm,turingstudio/nasm,projedi/nasm,techkey/nasm,techkey/nasm,projedi/nasm,techkey/nasm,turingstudio/nasm,projedi/nasm,Distrotech/nasm,Distrotech/nasm,turingstudio/nasm,techkey/nasm,turingstudio/nasm,techkey/nasm,Distrotech/nasm