Remove change I am faaairly certain I did NOT add :O

I'm guessing it's some issue after a rebase or something...

src/common/mod.rs

@@ -1,2 +1,3 @@
 #[macro_use]
 pub mod int_like;
+pub mod unique;

src/common/unique.rs

@@ -0,0 +1,33 @@
+use core::{fmt, ptr::NonNull};
+
+/// A small wrapper around NonNull<T> that is Send + Sync, which is
+/// only correct if the pointer is never accessed from multiple
+/// locations across threads. Which is always, if the pointer is
+/// unique.
+pub struct Unique<T>(NonNull<T>);
+
+impl<T> Copy for Unique<T> {}
+impl<T> Clone for Unique<T> {
+    fn clone(&self) -> Self {
+        *self
+    }
+}
+unsafe impl<T> Send for Unique<T> {}
+unsafe impl<T> Sync for Unique<T> {}
+
+impl<T> Unique<T> {
+    pub fn new(ptr: *mut T) -> Self {
+        Self(NonNull::new(ptr).unwrap())
+    }
+    pub unsafe fn new_unchecked(ptr: *mut T) -> Self {
+        Self(NonNull::new_unchecked(ptr))
+    }
+    pub fn as_ptr(&self) -> *mut T {
+        self.0.as_ptr()
+    }
+}
+impl<T> fmt::Debug for Unique<T> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{:?}", self.0)
+    }
+}