Hyphae mining speed is faster than stems

Summary:
Hyphae have a faster mining speed than stems.

Steps to Reproduce:

1. Place down a hyphae and stem block
2. In Survival mode, mine the hyphae and stem blocks

Observed Results:
Hyphae is mined faster than stems.

Expected Results:
Hyphae should take as long as stems to mine.

Notes:
1.16.40 is not affected.