Fix build (#286)

The Refactoring of the scripts 'addmailuser' and 'delmailuser'
destroyed the build process.

target/bin/addmailuser

@@ -21,6 +21,7 @@ if [ ! -z "$1" ]; then
       echo "Password can't be empty"
       exit 1
     fi
+  fi
   ENTRY=$(echo "$USER|$(doveadm pw -s SHA512-CRYPT -u "$USER" -p "$PASS")")
   echo "$ENTRY" >> $DATABASE
 else

target/bin/delmailuser

@@ -8,9 +8,6 @@ function usage {
 }
 
 if [ ! -z "$1" ]; then
-  USER=$1
-  ENTRIES=$(grep "$USER" -vi $DATABASE)
-  echo "$ENTRIES" > $DATABASE
   USER=$1
   if [ -f "$DATABASE" ]; then
     ENTRIES=$(grep "$USER" -vi $DATABASE)