remove helper classes (#11354)

...ions/agent/llama-index-agent-openai-legacy/pyproject.toml

...ntegrations/agent/llama-index-agent-openai/pyproject.toml

.../embeddings/llama-index-embeddings-adapter/pyproject.toml

...ddings/llama-index-embeddings-azure-openai/pyproject.toml

.../embeddings/llama-index-embeddings-bedrock/pyproject.toml

...eddings/llama-index-embeddings-huggingface/pyproject.toml

...mbeddings/llama-index-embeddings-llm-rails/pyproject.toml

...s/embeddings/llama-index-embeddings-openai/pyproject.toml

...es/llama-index-indices-managed-llama-cloud/pyproject.toml

...ndices/llama-index-indices-managed-vectara/pyproject.toml

...indices/llama-index-indices-managed-zilliz/pyproject.toml

...integrations/llms/llama-index-llms-bedrock/pyproject.toml

...tegrations/llms/llama-index-llms-dashscope/pyproject.toml

...-integrations/llms/llama-index-llms-openai/pyproject.toml

...lms/llama-index-multi-modal-llms-dashscope/pyproject.toml

...a-index-multi-modal-llms-replicate-multi-modal/.gitignore

.../llama-index-multi-modal-llms-replicate-multi-modal/BUILD

...ama-index-multi-modal-llms-replicate-multi-modal/Makefile

...ma-index-multi-modal-llms-replicate-multi-modal/README.md

.../llama_index/multi_modal_llms/replicate_multi_modal/BUILD