Deprecate CellChunkAlloc for DynAlloc (#186)

* Replace CellChunkAlloc with DynAlloc

* Remove CellChunkAlloc

* Satisfy linter

* Replace CellChunkAlloc with DynAlloc

* Remove CellChunkAlloc

* Satisfy linter

* Do not initialize env for each call

* Fix typo

* Remove tests which panick while panicking

These tests test for panicks. The issue is that
the `Drop` implementation for `BitVec` will be
called during the unwinding, this `Drop`
implementation will try to access uninitialized
fields and panick as well.