[tidy first] delete extraneous EventCatcher

[MichelleArk]

Resolves #N/A

Problem

We had two EventCatchers!!

Solution

Thankfully the older one (no predicate support) was not even being used, so I just ripped it out.
Confirmed no usage in dbt-adapters: https://github.com/search?q=repo%3Adbt-labs%2Fdbt-adapters%20EventCatcher&type=code

Checklist

• I have read the contributing guide and understand what's expected of me.
• I have run this code in development, and it appears to resolve the stated issue.
• This PR includes tests, or tests are not required or relevant for this PR.
• This PR has no interface changes (e.g., macros, CLI, logs, JSON artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX.
• This PR includes type annotations for new and modified functions.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.89%. Comparing base (cc8541c) to head (a0b3a7f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10710   +/-   ##
=======================================
  Coverage   88.89%   88.89%           
=======================================
  Files         180      180           
  Lines       22842    22842           
=======================================
  Hits        20305    20305           
  Misses       2537     2537           

Flag	Coverage Δ
integration	86.09% <ø> (ø)
unit	62.44% <ø> (ø)

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

Components	Coverage Δ
Unit Tests	62.44% <ø> (ø)
Integration Tests	86.09% <ø> (ø)