Compilation fix

radio/src/targets/gruvin9x/board_gruvin9x.cpp

@@ -164,7 +164,7 @@ void pwrOff()
 #endif
 }
 
-FORCEINLINE uint8_t keyDown()
+uint8_t keyDown()
 {
   return ((~PINL) & 0x3F) || ROTENC_DOWN();
 }

radio/src/targets/mega2560/board_mega2560.cpp

@@ -87,7 +87,7 @@ void pwrOff()
   PORTH &= ~0x10;   // PortH-4 set to 0
 }
 
-FORCEINLINE uint8_t keyDown()
+uint8_t keyDown()
 {
   return ((~PINL) & 0x3F) || ROTENC_DOWN();
 }