workspace: Remove superfluous call dependency (#50713)

Closes #50701

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [ ] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

Cargo.lock

@@ -21272,7 +21272,6 @@ dependencies = [
  "any_vec",
  "anyhow",
  "async-recursion",
- "call",
  "chrono",
  "client",
  "clock",

crates/workspace/Cargo.toml

@@ -14,7 +14,6 @@ doctest = false
 
 [features]
 test-support = [
-    "call/test-support",
     "client/test-support",
     "http_client/test-support",
     "db/test-support",
@@ -72,7 +71,6 @@ zed_actions.workspace = true
 windows.workspace = true
 
 [dev-dependencies]
-call = { workspace = true, features = ["test-support"] }
 client = { workspace = true, features = ["test-support"] }
 dap = { workspace = true, features = ["test-support"] }
 db = { workspace = true, features = ["test-support"] }