hashsum: Drop benches as covered by cksum benches

Author: oech3

.github/workflows/benchmarks.yml

@@ -30,7 +30,6 @@ jobs:
           - { package: uu_du }
           - { package: uu_expand }
           - { package: uu_fold }
-          - { package: uu_hashsum }
           - { package: uu_ls }
           - { package: uu_mv }
           - { package: uu_nl }

src/uu/hashsum/BENCHMARKING.md

@@ -30,7 +30,3 @@ path = "src/main.rs"
 divan = { workspace = true }
 tempfile = { workspace = true }
 uucore = { workspace = true, features = ["benchmark"] }
-
-[[bench]]
-name = "hashsum_bench"
-harness = false