Rename internal module from statik to no_threads

This module is named in reference to the keyword, but the term is
somewhat overloaded. Rename it to more clearly describe it and avoid the
misspelling.

Author: thaliaarchi

Diff for: std/src/sys/thread_local/mod.rs

@@ -30,9 +30,9 @@ cfg_if::cfg_if! {
         target_os = "zkvm",
         target_os = "trusty",
     ))] {
-        mod statik;
-        pub use statik::{EagerStorage, LazyStorage, thread_local_inner};
-        pub(crate) use statik::{LocalPointer, local_pointer};
+        mod no_threads;
+        pub use no_threads::{EagerStorage, LazyStorage, thread_local_inner};
+        pub(crate) use no_threads::{LocalPointer, local_pointer};
     } else if #[cfg(target_thread_local)] {
         mod native;
         pub use native::{EagerStorage, LazyStorage, thread_local_inner};