Fix unused variable warnings

PiperOrigin-RevId: 1009980559

rust/flatbuffers/src/push.rs

@@ -83,11 +83,6 @@ macro_rules! impl_push_for_endian_scalar {
             unsafe fn push(&self, dst: &mut [u8], _written_len: usize) {
                 emplace_scalar::<$ty>(dst, *self);
             }
-
-            #[inline]
-            fn alignment() -> PushAlignment {
-                PushAlignment::new(size_of::<$ty>())
-            }
         }
     };
 }
@@ -103,23 +98,3 @@ impl_push_for_endian_scalar!(u64);
 impl_push_for_endian_scalar!(i64);
 impl_push_for_endian_scalar!(f32);
 impl_push_for_endian_scalar!(f64);
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn endian_scalar_push_alignment_matches_wire_size() {
-        assert_eq!(<bool as Push>::alignment().value(), 1);
-        assert_eq!(<u8 as Push>::alignment().value(), 1);
-        assert_eq!(<i8 as Push>::alignment().value(), 1);
-        assert_eq!(<u16 as Push>::alignment().value(), 2);
-        assert_eq!(<i16 as Push>::alignment().value(), 2);
-        assert_eq!(<u32 as Push>::alignment().value(), 4);
-        assert_eq!(<i32 as Push>::alignment().value(), 4);
-        assert_eq!(<f32 as Push>::alignment().value(), 4);
-        assert_eq!(<u64 as Push>::alignment().value(), 8);
-        assert_eq!(<i64 as Push>::alignment().value(), 8);
-        assert_eq!(<f64 as Push>::alignment().value(), 8);
-    }
-}