MI32 legacy: fix missing button when turning on BLE

[Staars]

Description:

Turning on Bluetooth without rebooting with so115 1 was already possible before, but the web GUI never reflected that correctly.
Saving a few bytes by removing an unnecessary if-statement.

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.8
• The code change is tested and works with Tasmota core ESP32 V.3.1.0.241206
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass