nir: remove explicit nir_intrinsic_index_flag values
These were left after a rebase and happen to make NIR_INTRINSIC_SWIZZLE_MASK == NIR_INTRINSIC_SRC_ACCESS
, which is how it was noticed.
Fixes: 6f20643b ("nir: Allow qualifiers on copy_deref and image instructions")
Reviewed-by: Caio Marcelo de Oliveira Filho caio.oliveira@intel.com
/cc @cwabbott0 @cmarcelo