docs: Remove duplicated content from how to tools (#21821)

Content is duplicated, and is covered in how to use chat models.

docs/docs/how_to/index.mdx

@@ -166,15 +166,13 @@ Indexing is the process of keeping your vectorstore in-sync with the underlying
 
 LangChain Tools contain a description of the tool (to pass to the language model) as well as the implementation of the function to call).
 
-- [How to: use LangChain tools](/docs/how_to/tools)
+- [How to: create tools](/docs/how_to/custom_tools)
 - [How to: use a chat model to call tools](/docs/how_to/tool_calling/)
+- [How to: use built-in LangChain tools](/docs/how_to/tools)
 - [How to: use LangChain toolkits](/docs/how_to/toolkits)
-- [How to: define a custom tool](/docs/how_to/custom_tools)
+- [How to: use tools with LLMs that do not support tool calling natively](/docs/how_to/tools_prompting)
 - [How to: convert LangChain tools to OpenAI functions](/docs/how_to/tools_as_openai_functions)
-- [How to: use tools without function calling](/docs/how_to/tools_prompting)
-- [How to: let the LLM choose between multiple tools](/docs/how_to/tools_multiple)
 - [How to: add a human in the loop to tool usage](/docs/how_to/tools_human)
-- [How to: do parallel tool use](/docs/how_to/tools_parallel)
 - [How to: handle errors when calling tools](/docs/how_to/tools_error)
 - [How to: call tools using multi-modal data](/docs/how_to/tool_calls_multi_modal)
 

docs/docs/how_to/tools_chain.ipynb

@@ -335,7 +335,7 @@
    "id": "616f9714-5b18-4eed-b88a-d38e4cb1de99",
    "metadata": {},
    "source": [
-    "Agents are also great because they make it easy to use multiple tools. To learn how to build Chains that use multiple tools, check out the [Chains with multiple tools](/docs/how_to/tools_multiple) page."
+    "Agents are also great because they make it easy to use multiple tools."
    ]
   },
   {
@@ -457,21 +457,6 @@
    "source": [
     "Check out the [LangSmith trace here](https://smith.langchain.com/public/eeeb27a4-a2f8-4f06-a3af-9c983f76146c/r)."
    ]
-  },
-  {
-   "cell_type": "markdown",
-   "id": "b0e4b7f4-58ce-4ca0-a986-d05a436a7ccf",
-   "metadata": {},
-   "source": [
-    "## Next steps\n",
-    "\n",
-    "Here we've gone over the basic ways to use Tools with Chains and Agents. We recommend the following sections to explore next:\n",
-    "\n",
-    "- [Agents](/docs/tutorials/agents): Everything related to Agents.\n",
-    "- [Choosing between multiple tools](/docs/how_to/tools_multiple): How to make tool chains that select from multiple tools.\n",
-    "- [Prompting for tool use](/docs/how_to/tools_prompting): How to make tool chains that prompt models directly, without using function-calling APIs.\n",
-    "- [Parallel tool use](/docs/how_to/tools_parallel): How to make tool chains that invoke multiple tools at once."
-   ]
   }
  ],
  "metadata": {
@@ -490,7 +475,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.4"
+   "version": "3.11.4"
   }
  },
  "nbformat": 4,