Revert "task: Wrap programs in ""s (#31537)" (#31674)

That commit broke a lot, as our one-off tasks (alt-enter in the tasks
modal), npm, jest tasks are all not real commands, but a composition of
commands and arguments.

This reverts commit 5db14d315b.

Closes https://github.com/zed-industries/zed/issues/31554

Release Notes:

- N/A

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>

crates/task/src/lib.rs

@@ -384,7 +384,6 @@ impl ShellBuilder {
 
     /// Returns the program and arguments to run this task in a shell.
     pub fn build(mut self, task_command: String, task_args: &Vec<String>) -> (String, Vec<String>) {
-        let task_command = format!("\"{task_command}\"");
         let combined_command = task_args
             .into_iter()
             .fold(task_command, |mut command, arg| {