Remove redundant checks for power of 0 (#2934)

* Add comment explaining necessity for second 0 check

Thank you @GUVWAF

* Update RF95Interface.cpp

* Update STM32WLE5JCInterface.cpp

* Update SX126xInterface.cpp

* Update SX128xInterface.cpp

* remove whitespace...

* Update SX128xInterface.cpp

src/mesh/SX126xInterface.cpp

@@ -43,6 +43,7 @@ template <typename T> bool SX126xInterface<T>::init()
     bool useRegulatorLDO = false; // Seems to depend on the connection to pin 9/DCC_SW - if an inductor DCDC?
 
     RadioLibInterface::init();
+
     if (power > SX126X_MAX_POWER) // Clamp power to maximum defined level
         power = SX126X_MAX_POWER;