Avoid unused variable warnings when CLPF and dering are enabled.
Avoid unused variable warnings when CLPF and dering are enabled.

Change-Id: I7909756e6a7d2da817b3354d6a8cb341cdc5bf98

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,luctrudeau/aom,smarter/aom,smarter/aom,smarter/aom,GrokImageCompression/aom,luctrudeau/aom,GrokImageCompression/aom,luctrudeau/aom,smarter/aom,GrokImageCompression/aom,luctrudeau/aom,luctrudeau/aom,smarter/aom,smarter/aom,luctrudeau/aom