cleanup

library/alloc/src/raw_vec.rs

@@ -168,15 +168,9 @@ impl<T, A: Allocator> RawVec<T, A> {
 
     #[cfg(not(no_global_oom_handling))]
     fn allocate_in(capacity: usize, init: AllocInit, alloc: A) -> Self {
-        if mem::size_of::<T>() == 0 {
+		// Don't allocate here because `Drop` will not deallocate when `capacity` is 0.
+        if mem::size_of::<T>() == 0 || capacity == 0 {
             Self::new_in(alloc)
-        } else if capacity == 0 {
-            // Don't allocate here because `Drop` will not deallocate when `capacity` is 0.
-            Self {
-                ptr: unsafe { Unique::new_unchecked(NonNull::dangling().as_ptr()) },
-                cap: capacity,
-                alloc,
-            }
         } else {
             // We avoid `unwrap_or_else` here because it bloats the amount of
             // LLVM IR generated.