CORE-997 Reverts old ways of reading certificates by the TcpTransportLayer

[EncodePanda]

Overview

CORE-607 introduce new way of reading TLS ceritificates. This unofortunatlly broke the node as that new way of reading certificates does not work. This commit reverts those changes - bringing old way of reading certificates. Thix commit temporarly disables TransportLayer tests (they do not compile). Bringing those tests back is a matter of next PR - https://rchain.atlassian.net/browse/CORE-998

Integration tests are passing:

=================TEST SUMMARY RESULTS======================
PASS: peer1.rchain.coop: Metrics API http/tcp/40403 is available.
PASS: peer0.rchain.coop: Metrics API http/tcp/40403 is available.
PASS: peer1.rchain.coop: Peers count correct in node logs.
PASS: peer0.rchain.coop: Peers count correct in node logs.
PASS: peer1.rchain.coop: Rholang evaluation of files performed correctly.
PASS: peer0.rchain.coop: Rholang evaluation of files performed correctly.
PASS: peer0.rchain.coop: REPL loader success!
PASS: peer1.rchain.coop: Proposal of blocks for deployed contracts worked.
PASS: peer0.rchain.coop: Proposal of blocks for deployed contracts worked.
PASS: bootstrap.rchain.coop: Proposal of blocks for deployed contracts worked.
PASS: peer1.rchain.coop: No errors defined by "ERROR" in logs.
PASS: peer0.rchain.coop: No errors defined by "ERROR" in logs.
PASS: peer1.rchain.coop: No text of "RuntimeException" in logs.
PASS: peer0.rchain.coop: No text of "RuntimeException" in logs.
PASS ALL: All tests successfully passed
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Which JIRA issue does this PR relate to? If there is not a JIRA issue addressing this work, please create one now and add the link here.

CORE-997

[EncodePanda]

should be CORE-997, but we all know that :)

[jeremybusk]

LGTM

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (dev@d86c8e0). Click here to learn what that means.
The diff coverage is 0%.

@@          Coverage Diff          @@
##             dev   #1285   +/-   ##
=====================================
  Coverage       ?     67%           
=====================================
  Files          ?     219           
  Lines          ?    8074           
  Branches       ?     531           
=====================================
  Hits           ?    5410           
  Misses         ?    2664           
  Partials       ?       0

Flag	Coverage Δ
#blockstorage	93.44% <ø> (?)
#casper	80.51% <ø> (?)
#comm	24.6% <ø> (?)
#crypto	91.27% <ø> (?)
#node	2.15% <0%> (?)
#rholang	81.94% <ø> (?)
#roscala	79.1% <ø> (?)
#rspace	85.18% <ø> (?)
#shared	55.65% <ø> (?)

Impacted Files	Coverage Δ
.../main/scala/coop/rchain/node/effects/package.scala	0% <ø> (ø)
...coop/rchain/comm/transport/TcpTransportLayer.scala	0% <ø> (ø)
node/src/main/scala/coop/rchain/node/node.scala	0% <0%> (ø)

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