i965: Remove catch-all nir_lower_io call with specific cases.
i965: Remove catch-all nir_lower_io call with specific cases.

Most cases already call nir_lower_io explicitly for input and output
lowering.  This catch all isn't very useful anymore - we can just add it
to the remaining cases.

Signed-off-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Reviewed-by: Iago Toral Quiroga <a847aabaac44184372f6b1cd1a59aa254daaeb0b@igalia.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler