Remove duplicate pro_micro.h (#7246)

keyboards/meira/matrix.c

@@ -116,8 +116,6 @@ void matrix_init(void)
     init_rows();
 //    init_lcols();
 
-//    TX_RX_LED_INIT;
-
     // initialize matrix state: all keys off
     for (uint8_t i=0; i < MATRIX_ROWS; i++) {
         matrix[i] = 0;