target/hexagon: idef-parser remove unused defines

target/hexagon: idef-parser remove unused defines

Before switching to GArray/g_string_printf we used fixed size arrays for
output buffers and instructions arguments among other things.

Macros defining the sizes of these buffers were left behind, remove
them.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240523125901.27797-2-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>