Stabilize call_runtime

[agryaznov]

This host function is now stabilized in the pallet.

So we remove the feature flag and comments stating it's unstable.

[agryaznov]

In order to make e2e test for the new function pass, we need to add pallet_balances::pallet::Call::transfer_allow_death dispatchable to the substrate-contracts-node's runtime CallFilter

[SkymanOne]

In order to make e2e test for the new function pass, we need to add pallet_balances::pallet::Call::transfer_allow_death dispatchable to the substrate-contracts-node's runtime CallFilter

Well. We just need to update substrate contracts node.

[agryaznov]

Well. We just need to update substrate contracts node.

update for the contracts-node: paritytech/substrate-contracts-node#186

[agryaznov]

ci: substrate-contracts-node has been updated, we need to wait until fresh ink-ci-linux docker image is published with the new version of it.

[codecov-commenter]

Codecov Report

Merging #1749 (e267dd1) into master (8bb4b40) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1749      +/-   ##
==========================================
- Coverage   52.14%   52.09%   -0.05%     
==========================================
  Files         207      207              
  Lines        6657     6657              
==========================================
- Hits         3471     3468       -3     
- Misses       3186     3189       +3     

Impacted Files	Coverage Δ
crates/env/src/api.rs	37.31% <ø> (ø)
crates/env/src/backend.rs	78.12% <ø> (ø)
crates/env/src/engine/off_chain/impls.rs	46.82% <ø> (ø)
crates/ink/src/env_access.rs	9.09% <ø> (ø)

... and 2 files with indirect coverage changes

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