Rename op2 to op

[littledivy]

It has stayed op2 for a long time now with older op macro removed

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.90164% with 71 lines in your changes missing coverage. Please review.

Project coverage is 81.75%. Comparing base (0c7f83e) to head (732d2e4).
Report is 50 commits behind head on main.

Files	Patch %	Lines
core/runtime/ops.rs	76.40%	21 Missing ⚠️
core/ops_builtin_v8.rs	56.09%	18 Missing ⚠️
core/ops_builtin.rs	37.03%	17 Missing ⚠️
testing/checkin/runner/ops.rs	20.00%	8 Missing ⚠️
ops/op/mod.rs	78.57%	3 Missing ⚠️
testing/checkin/runner/ops_error.rs	66.66%	2 Missing ⚠️
core/extensions.rs	0.00%	1 Missing ⚠️
ops/lib.rs	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #808      +/-   ##
==========================================
+ Coverage   81.43%   81.75%   +0.32%     
==========================================
  Files          97       98       +1     
  Lines       23877    24324     +447     
==========================================
+ Hits        19445    19887     +442     
- Misses       4432     4437       +5     

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[satyarohith]

.github/workflows/ci-test/action.yml:        cargo run -p deno_core --example op2
.github/workflows/ci-test/action.yml:        cargo run -p deno_core --example op2 --features include_js_files_for_snapshotting
core/examples/op2.rs:  esm_entry_point = "ext:op_sample/op2.js",
core/examples/op2.rs:  esm = [ dir "examples", "op2.js" ],

Can you update the following instances?

[satyarohith]

LGTM if CI is green

[bartlomieju]

Not a fan of renaming, but I guess that's okay