Remove stale packages from main

[nerdai]

Description

Dec 10 review of integration packages found the following 20 packages to be stale:

llama-index-embeddings-huggingface-itrex | 0.0006430868167
llama-index-packs-redis-ingestion-pipeline | 0.0006430868167
llama-index-packs-subdoc-summary | 0.0006430868167
llama-index-packs-finchat | 0.0006430868167
llama-index-readers-snscrape-twitter | 0.000667495131
llama-index-llms-solar | 0.0006714967112
llama-index-readers-readme | 0.0006720488261
llama-index-llms-unify | 0.0006723174281
llama-index-packs-docugami-kg-rag | 0.0006738850004
llama-index-packs-searchain | 0.0006739676584
llama-index-readers-openapi | 0.0006758560113
llama-index-readers-youtube-metadata | 0.0006768877976
llama-index-tools-passio-nutrition-ai | 0.0006776269773
llama-index-readers-feishu-wiki | 0.0006791342778
llama-index-embeddings-octoai | 0.0006798481852
llama-index-readers-clickhouse | 0.0006801570384
llama-index-readers-azure-devops | 0.0006826668916

Also moved to stale:

llama-index-vector-stores-chatgpt-plugin
llama-index-vector-stores-metal
llama-index-packs-vanna

Companion PR to move these packages to stale_packages branch: #17234

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[logan-markewich]

Can we do a double pass and remove any references to these packages in our docs?

[nerdai]

Can we do a double pass and remove any references to these packages in our docs?

Good call! Will do that now.

[nerdai]

Alright, that should take care of everything in the docs. It looks like one of the stale packages, namely llama-index-llms-solar was recently modified in #17231. But it looks like it was only to rip out mention of llama-index-legacy, and so it should still be deemed as stale.