- use RADIX_V4, RADIX_V6, RADIX_V4_ECS, and RADIX_V6_ECS as array
indices instead of 0 through 3.
- remove some unused macros
(cherry picked from commit f7f20b1202)
- use RADIX_V4, RADIX_V6, RADIX_V4_ECS, and RADIX_V6_ECS as array
indices instead of 0 through 3.
- remove some unused macros
(cherry picked from commit f7f20b1202)