393 clean up Promicro variant

variants/promicro/platformio.ini

@@ -23,7 +23,6 @@ build_flags = ${nrf52_base.build_flags}
   -D ENV_INCLUDE_INA3221=1
   -D ENV_INCLUDE_INA219=1
 build_src_filter = ${nrf52_base.build_src_filter}
-  +<helpers/nrf52/PromicroBoard.cpp>
   +<helpers/sensors>
   +<../variants/promicro>
 lib_deps= ${nrf52_base.lib_deps}
@@ -130,7 +129,6 @@ build_flags = ${nrf52_base.build_flags}
   -D SX126X_RX_BOOSTED_GAIN=1
 build_src_filter =
   ${nrf52_base.build_src_filter}
-  +<helpers/nrf52/PromicroBoard.cpp>
   +<helpers/sensors>
   +<../variants/promicro>
 lib_deps= ${nrf52_base.lib_deps}

variants/promicro/target.h

@@ -3,7 +3,7 @@
 #define RADIOLIB_STATIC_ONLY 1
 #include <RadioLib.h>
 #include <helpers/RadioLibWrappers.h>
-#include <helpers/nrf52/PromicroBoard.h>
+#include <PromicroBoard.h>
 #include <helpers/CustomSX1262Wrapper.h>
 #include <helpers/CustomLLCC68Wrapper.h>
 #include <helpers/AutoDiscoverRTCClock.h>