[PATCH v4 9/9] rust: macros: remove `THIS_MODULE` static from `module!`

[Alvin Sun <alvin.sun@linux.dev>]

All users have been migrated to `ModuleMetadata::THIS_MODULE` const or
`this_module::<LocalModule>()` helper. The `static THIS_MODULE`
generated by the `module!` macro is no longer referenced anywhere,
so remove it to avoid having two sources of the same `ThisModule`
pointer.

Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
---
 rust/macros/module.rs | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/rust/macros/module.rs b/rust/macros/module.rs
index aa9a618d5d19e..23b6a1b456b80 100644
--- a/rust/macros/module.rs
+++ b/rust/macros/module.rs
@@ -497,22 +497,6 @@ pub(crate) fn module(info: ModuleInfo) -> Result<TokenStream> {
         /// Used by the printing macros, e.g. [`info!`].
         const __LOG_PREFIX: &[u8] = #name_cstr.to_bytes_with_nul();
 
-        // SAFETY: `__this_module` is constructed by the kernel at load time and will not be
-        // freed until the module is unloaded.
-        #[cfg(MODULE)]
-        static THIS_MODULE: ::kernel::ThisModule = unsafe {
-            extern "C" {
-                static __this_module: ::kernel::types::Opaque<::kernel::bindings::module>;
-            };
-
-            ::kernel::ThisModule::from_ptr(__this_module.get())
-        };
-
-        #[cfg(not(MODULE))]
-        static THIS_MODULE: ::kernel::ThisModule = unsafe {
-            ::kernel::ThisModule::from_ptr(::core::ptr::null_mut())
-        };
-
         /// The `LocalModule` type is the type of the module created by `module!`,
         /// `module_pci_driver!`, `module_platform_driver!`, etc.
         type LocalModule = #type_;

-- 
2.43.0