Remove Shellcheck version overrides

Pants 2.10.0 includes Shellcheck 0.8.0 by default now, so we can
remove our overrides.

Signed-off-by: Christopher Maier <[email protected]>

Author: christophermaier

pants.toml

@@ -40,14 +40,3 @@ args = ["-i 4", "-ci", "-sr"]
 
 [test]
 output = "all"
-
-[shellcheck]
-# Currently, Pants only knows about v0.7.1, but v0.7.2 has some nice
-# relative sourcing features we'd like to take advantage of (namely,
-# `script-path=SOURCEDIR`). Once Pants knows about v0.7.2 natively, we
-# can remove these configuration values.
-version = "v0.7.2"
-known_versions = [
-  "v0.7.2|macos_x86_64|969bd7ef668e8167cfbba569fb9f4a0b2fc1c4021f87032b6a0b0e525fb77369|3988092",
-  "v0.7.2|linux_x86_64|70423609f27b504d6c0c47e340f33652aea975e45f312324f2dbf91c95a3b188|1382204"
-]