revert changes to AnyBuffer

Signed-off-by: Teo Koon Peng <[email protected]>

Author: koonpeng

src/buffer/any_buffer.rs

@@ -86,10 +86,6 @@ impl AnyBuffer {
             .entry(TypeId::of::<T>())
             .or_insert_with(|| Box::leak(Box::new(AnyBufferAccessImpl::<T>::new())))
     }
-
-    pub fn as_any_buffer(self) -> AnyBuffer {
-        self
-    }
 }
 
 impl std::fmt::Debug for AnyBuffer {
@@ -215,14 +211,6 @@ impl<T: 'static + Send + Sync + Any> From<BufferKey<T>> for AnyBufferKey {
     }
 }
 
-impl<T: 'static + Send + Sync + Any> TryFrom<AnyBufferKey> for BufferKey<T> {
-    type Error = OperationError;
-
-    fn try_from(value: AnyBufferKey) -> Result<Self, Self::Error> {
-        value.downcast_for_message().or_broken()
-    }
-}
-
 /// Similar to [`BufferView`][crate::BufferView], but this can be unlocked with
 /// an [`AnyBufferKey`], so it can work for any buffer whose message types
 /// support serialization and deserialization.