Refactoring: Removed main function

src/CustomerData.txt

@@ -3,4 +3,18 @@ ID=1234
 forename=Max
 Surname=Mustermann
 password=example
-balance=2000
+balance=2000
+
+1327=example
+ID=1327
+forename=Max
+Surname=Mustermann
+password=example
+balance=1500
+
+1666=example
+ID=1666
+forename=Max
+Surname=Mustermann
+password=example
+balance=240

src/updateCustomerAccountBalance.c

@@ -58,7 +58,7 @@ bool updateAvailableAccountBalance(int user_id, float changeInBalance, bool posi
     strcat(stringID, user_id_as_string);
 
     FILE *file = fopen("CustomerData.txt", "r+"); 
-
+    printf(stringID);
     while(keep_reading) {
         fgets(buffer, MAX_LENGTH, file);
         currentLine++;
@@ -81,11 +81,3 @@ bool updateAvailableAccountBalance(int user_id, float changeInBalance, bool posi
     float newBalance = (positive) ? availableBalance+changeInBalance : availableBalance-changeInBalance;
     replaceBalanceInString(newBalance,currentLine);
 }
-
-int main(){
-
-    updateAvailableAccountBalance(1234,500, true);
-    return 0;
-
-}
-