[fix] #2764: Remove limit on max message size

[Erigara]

Signed-off-by: Shanin Roman shanin1000@yandex.ru

Description of the Change

Remove restriction on max message size (remove MAX_MESSAGE_LEN constant and checks associated with it).

Issue

Closes #2764.

Benefits

Not it's possible to send large genesis block through network.

Possible Drawbacks

Malicious peer could try to ddos other peers.

[codecov]

Codecov Report

Merging #2769 (97582fb) into iroha2-dev (a16d9c3) will decrease coverage by 1.94%.
The diff coverage is 66.85%.

@@              Coverage Diff               @@
##           iroha2-dev    #2769      +/-   ##
==============================================
- Coverage       67.61%   65.66%   -1.95%     
==============================================
  Files             140      166      +26     
  Lines           26173    29907    +3734     
==============================================
+ Hits            17696    19638    +1942     
- Misses           8477    10269    +1792     

Impacted Files	Coverage Δ
actor/src/actor_id.rs	90.00% <ø> (ø)
actor/src/deadlock.rs	100.00% <ø> (ø)
cli/derive/src/lib.rs	92.30% <ø> (+17.58%)	⬆️
cli/src/event.rs	41.86% <ø> (ø)
cli/src/main.rs	1.09% <0.00%> (-0.26%)	⬇️
cli/src/stream.rs	81.39% <ø> (ø)
cli/src/torii/mod.rs	28.88% <0.00%> (ø)
client/src/http.rs	47.82% <ø> (ø)
client/src/http_default.rs	41.59% <ø> (-18.59%)	⬇️
client_cli/src/main.rs	0.27% <0.00%> (+0.01%)	⬆️
... and 213 more

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