Diff of /helper.h [1ceb93] .. [717405]  Maximize  Restore

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--- a/helper.h
+++ b/helper.h
@@ -26,6 +26,4 @@
 #define CLRB(x,bit) x &= ~BIT(bit)
 #define ISB(x,bit) (x & BIT(bit))
 
-#define UART2_IsRX() (UART2->SR & UART2_SR_RXNE)
-
 #endif //__HELPER_H__