Re-export `which` from `helix-stdx::env`

We use `which::which` in many crates, so `which` was a separate
dependency across all of them. We can centralize `which` into the
stdx crate so it's easy for all crates to depend on it.

I also moved the rest of `helix-view/src/env.rs` into helix-stdx's
`env` module since it only contained a thin wrapper around `which`
and `std::env`.

1 files changed, 0 insertions, 8 deletions

diff --git a/helix-view/src/env.rs b/helix-view/src/env.rs
deleted file mode 100644
index c68cc609..00000000
--- a/helix-view/src/env.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-pub fn binary_exists(binary_name: &str) -> bool {
-    which::which(binary_name).is_ok()
-}
-
-#[cfg(not(windows))]
-pub fn env_var_is_set(env_var_name: &str) -> bool {
-    std::env::var_os(env_var_name).is_some()
-}