refactoring: removed unnecessary comments

src/convert_m_to_ft.c

@@ -12,7 +12,7 @@ float convert_length(float value, char from_unit, char to_unit) {
     } else if (from_unit == 'i' && to_unit == 'c') {
         result = value * 2.54; // Inches to centimeters
     } else if (from_unit == 'c' && to_unit == 'i') {
-        result = value / 2.54; // Centimeters to inches
+        result = value / 2.54;
     } else {
         printf("Invalid units or conversion not supported.\n");
         result = -1; // Error code