PoolVector is gone, replaced by Vector

Typed `PoolTypeArray` types are now renamed `PackedTypeArray` and are
sugar for `Vector<Type>`.

drivers/png/png_driver_common.h

@@ -32,7 +32,6 @@
 #define PNG_DRIVER_COMMON_H
 
 #include "core/image.h"
-#include "core/pool_vector.h"
 
 namespace PNGDriverCommon {
 
@@ -41,7 +40,7 @@ Error png_to_image(const uint8_t *p_source, size_t p_size, Ref<Image> p_image);
 
 // Append p_image, as a png, to p_buffer.
 // Contents of p_buffer is unspecified if error returned.
-Error image_to_png(const Ref<Image> &p_image, PoolVector<uint8_t> &p_buffer);
+Error image_to_png(const Ref<Image> &p_image, Vector<uint8_t> &p_buffer);
 
 } // namespace PNGDriverCommon