radeonsi: include ac_llvm_util.h when llvm available

Remove unused include.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25632>

src/gallium/drivers/radeonsi/si_get.c

@@ -9,7 +9,6 @@
 #include "radeon_vce.h"
 #include "radeon_video.h"
 #include "si_pipe.h"
-#include "ac_llvm_util.h"
 #include "util/u_cpu_detect.h"
 #include "util/u_screen.h"
 #include "util/u_video.h"

src/gallium/drivers/radeonsi/si_state_shaders.cpp

@@ -4,7 +4,10 @@
  * SPDX-License-Identifier: MIT
  */
 
+#ifdef LLVM_AVAILABLE
 #include "ac_llvm_util.h"
+#endif
+
 #include "ac_nir.h"
 #include "ac_shader_util.h"
 #include "compiler/nir/nir_serialize.h"

src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c

@@ -20,7 +20,6 @@
 #include <stdio.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include "ac_llvm_util.h"
 #include "sid.h"
 
 static struct hash_table *dev_tab = NULL;