Remove unsupported animation props from AVIF #2870

src/common.h

@@ -208,6 +208,11 @@ namespace sharp {
   */
   VImage SetAnimationProperties(VImage image, int pageHeight, std::vector<int> delay, int loop);
 
+  /*
+    Remove animation properties from image.
+  */
+  VImage RemoveAnimationProperties(VImage image);
+
   /*
     Does this image have a non-default density?
   */