drm/vram-helper: remove unneeded #if defined/endif guards.

Remove unneeded #if/#endif guards for checking whether the
CONFIG_DEBUG_FS option is set or not. If the option is not set, the
compiler optimizes the functions making the guards
unnecessary.
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323112802.228214-1-wambui.karugax@gmail.com

drivers/gpu/drm/drm_gem_vram_helper.c

@@ -1018,7 +1018,6 @@ static struct ttm_bo_driver bo_driver = {
  * struct drm_vram_mm
  */
 
-#if defined(CONFIG_DEBUG_FS)
 static int drm_vram_mm_debugfs(struct seq_file *m, void *data)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -1035,7 +1034,6 @@ static int drm_vram_mm_debugfs(struct seq_file *m, void *data)
 static const struct drm_info_list drm_vram_mm_debugfs_list[] = {
 	{ "vram-mm", drm_vram_mm_debugfs, 0, NULL },
 };
-#endif
 
 /**
  * drm_vram_mm_debugfs_init() - Register VRAM MM debugfs file.
@@ -1045,11 +1043,9 @@ static const struct drm_info_list drm_vram_mm_debugfs_list[] = {
  */
 void drm_vram_mm_debugfs_init(struct drm_minor *minor)
 {
-#if defined(CONFIG_DEBUG_FS)
 	drm_debugfs_create_files(drm_vram_mm_debugfs_list,
 				 ARRAY_SIZE(drm_vram_mm_debugfs_list),
 				 minor->debugfs_root, minor);
-#endif
 }
 EXPORT_SYMBOL(drm_vram_mm_debugfs_init);