fix(maestro): drop the cleanup_on_kill call sites #87 could not reach

Three in session_manager.rs arrived with #82 after #87 branched; four in
maestro-e2e were fenced off because #88 owns that crate. Removing the
field without them left the workspace uncompilable.

crates/maestro-daemon/tests/session_manager.rs

@@ -687,7 +687,6 @@ async fn natural_exit_of_a_guarded_worktree_retains_it_in_the_store() {
             worktree: Some(WorktreeSpec {
                 base_repo: repo.path().to_path_buf(),
                 branch: "feat/exited".into(),
-                cleanup_on_kill: true,
                 create_branch: true,
             }),
         })
@@ -761,7 +760,6 @@ async fn natural_exit_of_a_pristine_worktree_removes_it() {
             worktree: Some(WorktreeSpec {
                 base_repo: repo.path().to_path_buf(),
                 branch: "feat/clean".into(),
-                cleanup_on_kill: true,
                 create_branch: true,
             }),
         })
@@ -823,7 +821,6 @@ async fn natural_exit_without_a_retained_store_destroys_nothing() {
             worktree: Some(WorktreeSpec {
                 base_repo: repo.path().to_path_buf(),
                 branch: "feat/nostore".into(),
-                cleanup_on_kill: true,
                 create_branch: true,
             }),
         })

crates/maestro-e2e/tests/e2e.rs

@@ -45,7 +45,6 @@ fn worktree_req(base: &std::path::Path, branch: &str, create_branch: bool) -> Cr
         worktree: Some(WorktreeSpec {
             base_repo: base.to_path_buf(),
             branch: branch.into(),
-            cleanup_on_kill: true,
             create_branch,
         }),
     }
@@ -144,7 +143,6 @@ async fn kill_removes_clean_worktree() {
         worktree: Some(WorktreeSpec {
             base_repo: base.path().to_path_buf(),
             branch: "feature/e2e".into(),
-            cleanup_on_kill: true,
             create_branch: true,
         }),
     };
@@ -202,7 +200,6 @@ async fn kill_refuses_worktree_with_uncommitted_changes() {
         worktree: Some(WorktreeSpec {
             base_repo: base.path().to_path_buf(),
             branch: "feature/unsaved".into(),
-            cleanup_on_kill: true,
             create_branch: true,
         }),
     };
@@ -265,7 +262,6 @@ async fn spawn_on_existing_branch_checks_it_out() {
         worktree: Some(WorktreeSpec {
             base_repo: base.path().to_path_buf(),
             branch: "feature/existing".into(),
-            cleanup_on_kill: true,
             create_branch: false,
         }),
     };