remove redundant comment

lib/7segment_4digits.c

@@ -8,14 +8,6 @@
 uint8_t display[4] = { 0, 0, 0, 0 };
 uint8_t current_digit = 0;
 
-/**
- * Display pins should be mapped like this:
- * a  b  c  d  e  f  g  DP
- * 0  1  2  3  4  5  6  7
- * 
- * 
-*/
-
 void display_value(uint8_t digit, uint8_t data) {
     // The left part sets the last 4 bits high (turns the
     // according digit off) except for the one we want to address.