Remove changes trie

[turuslan]

Referenced issues

#1283

Description of the Change

• Kill the light client, CHTs and change tries. paritytech/substrate#10080
• remove "changes trie" related code
• simplifty interface

Benefits

Possible Drawbacks

Usage Examples or Tests

Alternate Designs

[codecov]

Codecov Report

Merging #1292 (cd25bdc) into master (1f859e5) will increase coverage by 0.01%.
The diff coverage is 17.85%.

@@            Coverage Diff             @@
##           master    #1292      +/-   ##
==========================================
+ Coverage   25.83%   25.85%   +0.01%     
==========================================
  Files         595      592       -3     
  Lines       21699    21568     -131     
  Branches    11216    11128      -88     
==========================================
- Hits         5607     5576      -31     
+ Misses      10967    10915      -52     
+ Partials     5125     5077      -48     

Impacted Files	Coverage Δ
core/api/service/impl/api_service_impl.cpp	13.26% <ø> (ø)
core/api/service/impl/api_service_impl.hpp	23.80% <ø> (ø)
core/consensus/grandpa/impl/voting_round_impl.cpp	24.05% <0.00%> (-0.04%)	⬇️
core/host_api/impl/host_api_factory_impl.cpp	73.33% <ø> (+0.60%)	⬆️
core/host_api/impl/host_api_factory_impl.hpp	100.00% <ø> (ø)
core/host_api/impl/host_api_impl.hpp	100.00% <ø> (ø)
core/primitives/digest.hpp	41.66% <ø> (+5.95%)	⬆️
core/primitives/event_types.hpp	41.17% <ø> (ø)
core/runtime/runtime_api/impl/core.cpp	17.85% <0.00%> (ø)
core/storage/changes_trie/changes_tracker.hpp	100.00% <ø> (ø)
... and 10 more

Help us with your feedback. Take ten seconds to tell us how you rate us.