[Inference] Fix sentence-similarity inputs (#1316)

This was broken before because one of the input parameters was
incorrectly being sent as part of the `parameters` object instead of the
`inputs`, this PR fixes that.
```js
import { InferenceClient } from "@huggingface/inference";

const client = new InferenceClient("hf_xxxxxxxxxxxxxxxxxxxxxxxx");

const output = await client.sentenceSimilarity({
	model: "sentence-transformers/all-MiniLM-L6-v2",
	inputs: {
	"source_sentence": "That is a happy person",
	"sentences": [
		"That is a happy dog",
		"That is a very happy person",
		"Today is a sunny day"
	]
},
	provider: "hf-inference",
});

console.log(output);
```

Author: hanouticelina

packages/inference/src/tasks/nlp/sentenceSimilarity.ts

@@ -2,7 +2,6 @@ import type { SentenceSimilarityInput, SentenceSimilarityOutput } from "@hugging
 import { InferenceOutputError } from "../../lib/InferenceOutputError";
 import type { BaseArgs, Options } from "../../types";
 import { request } from "../custom/request";
-import { omit } from "../../utils/omit";
 
 export type SentenceSimilarityArgs = BaseArgs & SentenceSimilarityInput;
 
@@ -13,7 +12,7 @@ export async function sentenceSimilarity(
 	args: SentenceSimilarityArgs,
 	options?: Options
 ): Promise<SentenceSimilarityOutput> {
-	const res = await request<SentenceSimilarityOutput>(prepareInput(args), {
+	const res = await request<SentenceSimilarityOutput>(args, {
 		...options,
 		task: "sentence-similarity",
 	});
@@ -24,11 +23,3 @@ export async function sentenceSimilarity(
 	}
 	return res;
 }
-
-function prepareInput(args: SentenceSimilarityArgs) {
-	return {
-		...omit(args, ["inputs", "parameters"]),
-		inputs: { ...omit(args.inputs, "sourceSentence") },
-		parameters: { source_sentence: args.inputs.sourceSentence, ...args.parameters },
-	};
-}