Push down cast

Signed-off-by: Nicholas Gates <[email protected]>

Author: gatesn

vortex-array/src/arrow/executor/list.rs

@@ -7,19 +7,15 @@ use std::sync::Arc;
 use arrow_array::ArrayRef as ArrowArrayRef;
 use arrow_array::GenericListArray;
 use arrow_array::OffsetSizeTrait;
-use arrow_schema::DataType;
 use arrow_schema::FieldRef;
 use vortex_buffer::BufferMut;
-use vortex_compute::arrow::IntoArrow;
 use vortex_compute::cast::Cast;
 use vortex_dtype::DType;
 use vortex_dtype::NativePType;
 use vortex_dtype::Nullability;
 use vortex_dtype::PTypeDowncastExt;
-use vortex_error::VortexError;
 use vortex_error::VortexExpect;
 use vortex_error::VortexResult;
-use vortex_error::vortex_bail;
 use vortex_error::vortex_ensure;
 use vortex_error::vortex_err;
 use vortex_session::VortexSession;