op-node: remove incomplete interop StandardMode

[protolambda]

Description

This removes the StandardMode scaffolding, since op-node now will prioritize ManagedMode, and soon unify that by removing the legacy mode of operation.

Tests

This scaffolding was not covered in testing. We are removing it now.

Additional context

Metadata

Fix #15995

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.24%. Comparing base (83b7e9a) to head (a41666a).
Report is 7 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #15996       +/-   ##
============================================
+ Coverage    81.40%   96.24%   +14.84%     
============================================
  Files          161      106       -55     
  Lines         8812     4575     -4237     
============================================
- Hits          7173     4403     -2770     
+ Misses        1506      172     -1334     
+ Partials       133        0      -133     

Flag	Coverage Δ
cannon-go-tests-64	?
contracts-bedrock-tests	96.24% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 55 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.