radv: don't set vertex_attribute_strides on GFX8+
Bounds checking no longer compares against the stride.
fossil-db (navi21):
Totals from 5 (0.00% of 133461) affected shaders:
Instrs: 1532 -> 1520 (-0.78%)
CodeSize: 8144 -> 8084 (-0.74%)
Latency: 5104 -> 5102 (-0.04%)
InvThroughput: 686 -> 680 (-0.87%)
VClause: 19 -> 17 (-10.53%)
PreVGPRs: 118 -> 116 (-1.69%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24115>