freedreno: Remove compute_constlen_quirk

Turns out that X1-85 is just more sensitive to the split being set
correctly. There seem to be no more hangs with the
compute_constlen_quirk disabled after the earlier commits.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34746>

src/freedreno/common/freedreno_dev_info.h

@@ -335,9 +335,6 @@ struct fd_dev_info {
        */
       bool has_persistent_counter;
 
-      /* Whether only 256 vec4 constants are available for compute */
-      bool compute_constlen_quirk;
-
       bool has_primitive_shading_rate;
 
       /* A7XX gen1 and gen2 seem to require declaring SAMPLEMASK input

src/freedreno/common/freedreno_devices.py

@@ -1181,7 +1181,7 @@ add_gpus([
         GPUId(chip_id=0xffff43050c01, name="Adreno X1-85"),
     ], A6xxGPUInfo(
         CHIP.A7XX,
-        [a7xx_base, a7xx_gen2, A7XXProps(compute_constlen_quirk = True)],
+        [a7xx_base, a7xx_gen2],
         num_ccu = 6,
         tile_align_w = 96,
         tile_align_h = 32,

src/freedreno/ir3/ir3_compiler.c

@@ -193,8 +193,7 @@ ir3_compiler_create(struct fd_device *dev, const struct fd_dev_id *dev_id,
        *
        * TODO: is this true on earlier gen's?
        */
-      compiler->max_const_compute =
-         (compiler->gen >= 7 && !dev_info->a7xx.compute_constlen_quirk) ? 512 : 256;
+      compiler->max_const_compute = compiler->gen >= 7 ? 512 : 256;
 
       /* TODO: implement clip+cull distances on earlier gen's */
       compiler->has_clip_cull = true;