Remove verity related props from build_image.py

We are removing VB related functionalities from release tools. This
change remove the verity related props in build_image.py, and also
remove VB1.0 bootimage builder, which will be unreachable without these
props.

Bug: 241044073
Test: atest under build/make
Change-Id: Ib3f1c100c2c6c9e63a64f49269619b76074a27fd