Merge "Fix compile error in Chromium building."

vp9/encoder/vp9_denoiser.c

diff --git a/vp9/encoder/vp9_denoiser.c b/vp9/encoder/vp9_denoiser.c
index a7aaff0..7d4e26a 100644
--- a/vp9/encoder/vp9_denoiser.c
+++ b/vp9/encoder/vp9_denoiser.c
@@ -478,13 +478,9 @@
     return;
   }
   for (i = 0; i < MAX_REF_FRAMES; ++i) {
-    if (&denoiser->running_avg_y[i] != NULL) {
-      vp9_free_frame_buffer(&denoiser->running_avg_y[i]);
-    }
+    vp9_free_frame_buffer(&denoiser->running_avg_y[i]);
   }
-  if (&denoiser->mc_running_avg_y != NULL) {
-    vp9_free_frame_buffer(&denoiser->mc_running_avg_y);
-  }
+  vp9_free_frame_buffer(&denoiser->mc_running_avg_y);
 }
 
 #ifdef OUTPUT_YUV_DENOISED