Remove unsupported endpoint overrides

[viren-nadkarni]

#56 (v2.9) expanded the supported services but it started causing tflocal to break with:

│ Error: Unsupported argument
│ 
│   on localstack_providers_override.tf line 24, in provider "aws":
│   24:     bedrockruntime = "http://localhost:4566/"
│ 
│ An argument named "bedrockruntime" is not expected here.
╵
╷
│ Error: Unsupported argument
│ 
│   on localstack_providers_override.tf line 108, in provider "aws":
│  108:     textract = "http://localhost:4566/"
│ 
│ An argument named "textract" is not expected here.

This is because AWS Terraform provider (as of 2025-04-02) does not support overrides for:

• bedrock-runtime
• textract

This PR removes these entries.

[alexrashed]

Thanks for jumping on this! 🚀