Revert "Initial Batch Embedding"

This reverts commit c22d54895a.

api/types.go

@@ -210,8 +210,7 @@ type EmbeddingRequest struct {
 	Model string `json:"model"`
 
 	// Prompt is the textual prompt to embed.
-	// Prompt string `json:"prompt"`
-	Prompt interface{} `json:"prompt"`
+	Prompt string `json:"prompt"`
 
 	// KeepAlive controls how long the model will stay loaded in memory following
 	// this request.
@@ -223,7 +222,7 @@ type EmbeddingRequest struct {
 
 // EmbeddingResponse is the response from [Client.Embeddings].
 type EmbeddingResponse struct {
-	Embedding [][]float64 `json:"embedding"`
+	Embedding []float64 `json:"embedding"`
 }
 
 // CreateRequest is the request passed to [Client.Create].