freedreno: drop hack for old dEQP

What does this MR do and why?

freedreno: drop hack for old dEQP

Since ac7a167b56d7 ("Adjust out of surface verification for wide lines")
from 2017, this shouldn't be necessary anymore.

Signed-off-by: David Heidelberg <david@ixit.cz>

See: https://github.com/KhronosGroup/VK-GL-CTS/commit/ac7a167b56d7de8c9859c23ed2eed6d40bf2ae70

Tested on Adreno 630, OnePlus 6 with Linux/postmarketOS.

dEQP-GLES2.functional.rasterization.primitives.lines_wide
dEQP-GLES2.functional.rasterization.primitives.line_strip_wide
dEQP-GLES2.functional.rasterization.primitives.line_loop_wide
dEQP-GLES3.functional.rasterization.primitives.lines_wide
dEQP-GLES3.functional.rasterization.primitives.line_strip_wide
dEQP-GLES3.functional.rasterization.primitives.line_loop_wide