chore: Remove readers package from llamaindex (#1649)

.changeset/weak-ants-kick.md

.vscode/ltex.dictionary.en-US.txt

README.md

...next/src/content/docs/llamaindex/guide/agents/1_setup.mdx

...rc/content/docs/llamaindex/guide/agents/4_agentic_rag.mdx

.../next/src/content/docs/llamaindex/guide/loading/index.mdx

.../llamaindex/modules/query_engines/router_query_engine.mdx

e2e/examples/nextjs-node-runtime/package.json

e2e/examples/nextjs-node-runtime/src/actions/openai.ts

e2e/examples/waku-query-engine/package.json

e2e/examples/waku-query-engine/src/actions.ts

examples/agent/query_openai_agent.ts

examples/agent/retriever_openai_agent.ts

examples/agent/step_wise_query_tool.ts

examples/directory.ts

examples/multimodal/jina.ts

examples/multimodal/load.ts

examples/pinecone-vector-store/load-docs.ts

examples/readers/src/custom-simple-directory-reader.ts

...es/readers/src/simple-directory-reader-with-llamaparse.ts