intel: Delete the has_illegal_ccs_values bool

This was only used in one location.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36383>

src/intel/dev/intel_device_info.c

@@ -552,7 +552,6 @@ static const struct intel_device_info intel_device_info_chv = {
    CMAT_PRE_XEHP_CONFIGURATIONS,                    \
    .ver = 9,                                        \
    .has_sample_with_hiz = true,                     \
-   .has_illegal_ccs_values = true,                  \
    .timestamp_frequency = 12000000
 
 #define GFX9_MAX_THREADS                            \
@@ -595,7 +594,6 @@ static const struct intel_device_info intel_device_info_chv = {
    .has_integer_dword_mul = false,                 \
    .has_llc = false,                               \
    .has_sample_with_hiz = true,                    \
-   .has_illegal_ccs_values = true,                 \
    .num_slices = 1,                                \
    .num_thread_per_eu = 6,                         \
    .max_eus_per_subslice = 6,                      \
@@ -917,7 +915,6 @@ static const struct intel_device_info intel_device_info_ehl_2x4 = {
 #define GFX12_FEATURES                              \
    GFX11_FEATURES,                                  \
    .ver = 12,                                       \
-   .has_illegal_ccs_values = false,                 \
    .has_aux_map = true
 
 #define GFX12_MAX_THREADS                           \

src/intel/dev/intel_device_info.py

@@ -288,9 +288,6 @@ Struct("intel_device_info",
         Member("bool", "supports_simd16_3src", compiler_field=True),
         Member("bool", "disable_ccs_repack"),
 
-        Member("bool", "has_illegal_ccs_values",
-               comment="True if CCS needs to be initialized before use."),
-
         Member("bool", "has_flat_ccs",
                comment=dedent("""\
                True if CCS uses a flat virtual address translation to a memory

src/intel/isl/isl_aux_info.c

@@ -173,7 +173,6 @@ isl_aux_get_initial_state(const struct intel_device_info *devinfo,
           */
          return ISL_AUX_STATE_PASS_THROUGH;
       } else if (devinfo->ver >= 12) {
-         assert(!devinfo->has_illegal_ccs_values);
          /* From Bspec 47709, "MCS/CCS Buffers for Render Target(s)":
           *
           *    "CCS surface does not require initialization. Illegal CCS