agent: Remove edit_files tool (#28041)

Release Notes:

- agent: Remove `edit_files` tool  in favor of `find_replace`

crates/assistant_tools/Cargo.toml

@@ -16,7 +16,6 @@ anyhow.workspace = true
 assistant_tool.workspace = true
 chrono.workspace = true
 collections.workspace = true
-feature_flags.workspace = true
 futures.workspace = true
 gpui.workspace = true
 html_to_markdown.workspace = true
@@ -24,19 +23,14 @@ http_client.workspace = true
 itertools.workspace = true
 language.workspace = true
 language_model.workspace = true
-log.workspace = true
 lsp.workspace = true
 project.workspace = true
 regex.workspace = true
-release_channel.workspace = true
 schemars.workspace = true
 serde.workspace = true
 serde_json.workspace = true
-settings.workspace = true
-theme.workspace = true
 ui.workspace = true
 util.workspace = true
-workspace.workspace = true
 worktree.workspace = true
 open = { workspace = true }
 workspace-hack.workspace = true