Revert component-based scripts lookup

[dblock]

Is your feature request related to a problem? Please describe

In #2934 we have added a way to include component build scripts. There are several problems with that.

1. In Separate monorepos (e.g. OS and OSD plugins) to different repositories #2188 we agreed to split monorepos. The maps monorepo came in as another new kind of monorepo that should not be supported.
2. There are no tests in the PR.
3. The new feature of path lookup is not documented in

   opensearch-build/src/paths/script_finder.py

   Line 27 in cbe6841

   it will look in the following locations, in order:

Describe the solution you'd like

1. Add tests and documentation on top of allow find build script by repo component #2934.
2. Split the maps monorepo, Separate monorepos (e.g. OS and OSD plugins) to different repositories #2188
3. Revert allow find build script by repo component #2934

Describe alternatives you've considered

No response

Additional context

No response

[gaiksaya]

[Triage] Hi @junqiu-lei Any plans on separating the repos?

[junqiu-lei]

Hi @gaiksaya , will take actions based on decision from opensearch-project/dashboards-maps#95

[bbarani]

@junqiu-lei @gaiksaya Can you provide an update on this issue?

[gaiksaya]

I believe this PR took care of adding tests and documentation: #2952
These are the components in build repo that still have scripts here: https://github.com/opensearch-project/opensearch-build/tree/main/scripts/components

[junqiu-lei]

I'll raise a PR for the revert of #2934 #2952, thanks!