Revert "DrawManager: Use Compute Shader to Update Hair."

This reverts commit 8f9599d17e80254928d2d72081a4c7e0dee64038.

Mac seems to have an error with this change.
```
                 ERROR: /Users/blender/git/blender-vdev/blender.git/source/blender/draw/intern/draw_hair.c:115:44: error: use of undeclared identifier 'shader_src'
                 ERROR: /Users/blender/git/blender-vdev/blender.git/source/blender/draw/intern/draw_hair.c:123:13: error: use of undeclared identifier 'shader_src'
                 ERROR: make[2]: *** [source/blender/draw/CMakeFiles/bf_draw.dir/intern/draw_hair.c.o] Error 1
                 ERROR: make[1]: *** [source/blender/draw/CMakeFiles/bf_draw.dir/all] Error 2
                 ERROR: make: *** [all] Error 2

```

1 files changed, 0 insertions, 36 deletions

diff --git a/source/blender/draw/intern/draw_manager_data.c b/source/blender/draw/intern/draw_manager_data.c
index 3b852e7f8c8..6bdc5305fed 100644
--- a/source/blender/draw/intern/draw_manager_data.c
+++ b/source/blender/draw/intern/draw_manager_data.c
@@ -47,7 +47,6 @@
 #endif
 
 #include "GPU_buffers.h"
-#include "GPU_capabilities.h"
 #include "GPU_material.h"
 #include "GPU_uniform_buffer.h"
 
@@ -447,19 +446,6 @@ void DRW_shgroup_uniform_vec4_array_copy(DRWShadingGroup *shgroup,
   }
 }
 
-void DRW_shgroup_vertex_buffer(DRWShadingGroup *shgroup,
-                               const char *name,
-                               GPUVertBuf *vertex_buffer)
-{
-  int location = GPU_shader_get_ssbo(shgroup->shader, name);
-  if (location == -1) {
-    BLI_assert(false && "Unable to locate binding of shader storage buffer objects.");
-    return;
-  }
-  drw_shgroup_uniform_create_ex(
-      shgroup, location, DRW_UNIFORM_VERTEX_BUFFER_AS_STORAGE, vertex_buffer, 0, 0, 1);
-}
-
 /** \} */
 
 /* -------------------------------------------------------------------- */
@@ -714,17 +700,6 @@ static void drw_command_draw_intance_range(
   cmd->inst_count = count;
 }
 
-static void drw_command_compute(DRWShadingGroup *shgroup,
-                                int groups_x_len,
-                                int groups_y_len,
-                                int groups_z_len)
-{
-  DRWCommandCompute *cmd = drw_command_create(shgroup, DRW_CMD_COMPUTE);
-  cmd->groups_x_len = groups_x_len;
-  cmd->groups_y_len = groups_y_len;
-  cmd->groups_z_len = groups_z_len;
-}
-
 static void drw_command_draw_procedural(DRWShadingGroup *shgroup,
                                         GPUBatch *batch,
                                         DRWResourceHandle handle,
@@ -840,17 +815,6 @@ void DRW_shgroup_call_instance_range(
   drw_command_draw_intance_range(shgroup, geom, handle, i_sta, i_ct);
 }
 
-void DRW_shgroup_call_compute(DRWShadingGroup *shgroup,
-                              int groups_x_len,
-                              int groups_y_len,
-                              int groups_z_len)
-{
-  BLI_assert(groups_x_len > 0 && groups_y_len > 0 && groups_z_len > 0);
-  BLI_assert(GPU_compute_shader_support());
-
-  drw_command_compute(shgroup, groups_x_len, groups_y_len, groups_z_len);
-}
-
 static void drw_shgroup_call_procedural_add_ex(DRWShadingGroup *shgroup,
                                                GPUBatch *geom,
                                                Object *ob,