CATS config.h minor change question

[rpratt20]

// Enable this setting to require 3D fix (altitude required, enable for airborne use), otherwise 2D fix is enough
#define GPS_REQUIRE_3D_FIX true

// GPS Position Fixing Mode: (default: 2 - 3D only)
// - 1: 2D only
// - 2: 3D only
// - 3: Auto 2D/3D
#define GPS_POSITION_FIXING_MODE 2

Are these reduntant settings for the same result?