Clean up many small dependencies (part 3) (#8425)

Follow-up to #8353

Release Notes:
- N/A

crates/project_symbols/Cargo.toml

@@ -16,12 +16,9 @@ fuzzy.workspace = true
 gpui.workspace = true
 ordered-float.workspace = true
 picker.workspace = true
-postage.workspace = true
 project.workspace = true
 serde_json.workspace = true
 settings.workspace = true
-smol.workspace = true
-text.workspace = true
 theme.workspace = true
 util.workspace = true
 workspace.workspace = true