Fix OllamaApiIT#streamingChat

 - Remove enableThinking as this test uses model which doesn't support thinking

Signed-off-by: Ilayaperumal Gopinathan <ilayaperumal.gopinathan@broadcom.com>

Author: ilayaperumalg

models/spring-ai-ollama/src/test/java/org/springframework/ai/ollama/api/OllamaApiIT.java

@@ -87,7 +87,6 @@ public void streamingChat() {
 				.content("What is the capital of Bulgaria and what is the size? " + "What it the national anthem?")
 				.build()))
 			.options(OllamaChatOptions.builder().temperature(0.9).build().toMap())
-			.enableThinking()
 			.build();
 
 		Flux<ChatResponse> response = getOllamaApi().streamingChat(request);