Fix AzureOpenAiChatAutoConfiguration auto-configuration

[nnam-droid12]

Description

This PR fixes the AzureOpenAiChatAutoConfiguration class by removing @ImportAutoConfiguration, aligning it with other AI auto-configurations as discussed in issue #4494.

Related Issues

Parent issue: #4494

[nnam-droid12]

Closing this issue as it’s covered by PR #4636 (Fix for #4494).