Remove unused ChatDefinition class

src/backend/langflow/utils/chat.py

@@ -1,34 +0,0 @@
-from typing import Any, Callable, Optional, Union
-
-from langchain_core.prompts import PromptTemplate as LCPromptTemplate
-from langflow.utils.prompt import GenericPromptTemplate
-from llama_index.prompts import PromptTemplate as LIPromptTemplate
-
-PromptTemplate = Union[LCPromptTemplate, LIPromptTemplate]
-
-
-class ChatDefinition:
-    def __init__(
-        self,
-        func: Callable,
-        inputs: list[str],
-        output_key: Optional[str] = None,
-        prompt_template: Optional[PromptTemplate] = None,
-    ):
-        self.func = func
-        self.input_keys = inputs
-        self.output_key = output_key
-        self.prompt_template = prompt_template
-
-    @classmethod
-    def from_prompt_template(cls, prompt_template: PromptTemplate, func: Callable, output_key: Optional[str] = None):
-        prompt = GenericPromptTemplate(prompt_template)
-        return cls(
-            func=func,
-            inputs=prompt.input_keys,
-            output_key=output_key,
-            prompt_template=prompt_template,
-        )
-
-    def __call__(self, inputs: dict, callbacks: Optional[Any] = None) -> dict:
-        return self.func(inputs, callbacks)